The church fathers were not influenced by paganism.
From Hippolytus, The Refutation of All Heresies:
"We propose to furnish an account of the tenets of natural philosophers, and who these are, as well as the tenets of moral philosophers, and who these are; and thirdly, the tenets of logicians, and who these logicians are. Among natural philosophers may be enumerated Thales, Pythagoras, Empedocles, Heraclitus, Anaximander, Anaximenes, Anaxagoras, Archelaus, Parmenides, Leucippus, Democritus, Xenophanes, Ecphantus, Hippo. Among moral philosophers are Socrates, pupil of Archelaus the physicist, (and) Plato the pupil of Socrates. This (speculator) combined three systems of philosophy. Among logicians is Aristotle, pupil of Plato. He systematized the art of dialectics. Among the Stoic (logicians) were Chrysippus (and) Zeno. Epicurus, however, advanced an opinion almost contrary to all philosophers. Pyrrho was an Academic; this (speculator) taught the incomprehensibility of everything. The Brahmins among the Indians, and the Druids among the Celts, and Hesiod (devoted themselves to philosophic pursuits).
The Proœmium.—Motives for Undertaking the Refutation; Exposure of the Ancient Mysteries; Plan of the Work; Completeness of the Refutation; Value of the Treatise to Future Ages.
We must not overlook any figment devised by those denominated philosophers among the Greeks. For even their incoherent tenets must be received as worthy of credit, on account of the excessive madness of the heretics; who, from the observance of silence, and from concealing their own ineffable mysteries, have by many been supposed worshippers of God. We have likewise, on a former occasion, expounded the doctrines of these briefly, not illustrating them with any degree of minuteness, but refuting them in coarse digest; not having considered it requisite to bring to light their secret doctrines, in order that, when we have explained their tenets by enigmas, they, becoming ashamed, lest also, by our divulging their mysteries, we should convict them of atheism, might be induced to desist in some degree from their unreasonable opinion and their profane attempt. But since I perceive that they have not been abashed by our forbearance, and have made no account of how God is long-suffering, though blasphemed by them, in order that either from shame they may repent, or should they persevere, be justly condemned, I am forced to proceed in my intention of exposing those secret mysteries of theirs, which, to the initiated, with a vast amount of plausibility they deliver who are not accustomed first to disclose (to any one), till, by keeping such in suspense during a period (of necessary preparation), and by rendering him blasphemous towards the true God they have acquired complete ascendancy over him, and perceive him eagerly panting after the promised disclosure.
…
In order, then, as we have already stated, that we may prove them atheists, both in opinion and their mode (of treating a question) and in fact, and (in order to show) whence it is that their attempted theories have accrued unto them, and that they have endeavoured to establish their tenets,
taking nothing from the holy Scriptures—
nor is it from preserving the succession of any saint that they have hurried headlong into these opinions;—
but that their doctrines have derived their origin from the wisdom of the Greeks, from the conclusions of those who have formed systems of philosophy, and from would-be mysteries, and the vagaries of astrologers,—it seems, then, advisable, in the first instance, by explaining the opinions advanced by the philosophers of the Greeks, to satisfy our readers that such are of greater antiquity than these (heresies), and more deserving of reverence in reference to their views respecting the divinity; in the next place, to compare each heresy with the system of each speculator, so as to show that the earliest champion of the heresy availing himself of these attempted theories, has turned them to advantage by appropriating their principles, and, impelled from these into worse, has constructed his own doctrine. The undertaking admittedly is full of labour, and (is one) requiring extended research. We shall not, however, be wanting in exertion; for afterwards it will be a source of joy, just like an athlete obtaining with much toil the crown, or a merchant after a huge swell of sea compassing gain, or a husbandman after sweat of brow enjoying the fruits, or a prophet after reproaches and insults seeing his predictions turning out true. In the commencement, therefore, we shall declare who first, among the Greeks, pointed out (the principles of) natural philosophy. For from these especially have they furtively taken their views who have first propounded these heresies, as we shall subsequently prove when we come to compare them one with another. Assigning to each of those who take the lead among philosophers their own peculiar tenets, we shall publicly exhibit these heresiarchs as naked and unseemly."
(Ante Nicene Fathers, vol. 5, HIPPOLYTUS, The Refutation of All Heresies, p. 12-16)
Among the pagan tenets that Hippolytus deemed as heresies theese are two examples:
"
Anaximander, then, was the hearer of Thales… This person declared the Infinite to be an originating principle and element of existing things, being the first to employ such a denomination of the originating principle. But, moreover, he asserted that there is an eternal motion, by the agency of which it happens that the heavens are generated; but that the earth is poised aloft, upheld by nothing, continuing (so) on account of its equal distance from all (the heavenly bodies); and that
the figure of it is curved, circular, similar to a column of stone. And
one of the surfaces we tread upon, but the other is opposite."
(Book I, Chapter V, p. 22)
One
Ecphantus, a native of Syracuse, affirmed that it is not possible to attain a true knowledge of things. He defines, however, as he thinks, primary bodies to be indivisible, 103(Some confusion has crept into the text. The first clause of the second sentence belongs probably to the first. The sense would then run thus: “Ecphantus affirmed the impossibility of dogmatic truth, for that every one was permitted to frame definitions as he thought proper.”) and that there are three variations of these, viz., bulk, figure, capacity, from which are generated the objects of sense. But that there is a determinable multitude of these, and that this is infinite. And that bodies are moved neither by weight nor by impact, but by divine power, which he calls mind and soul; and that of this the world is a representation; wherefore also it has been made
in the form of a sphere by divine power. And that the earth in the middle of the cosmical system
is moved round its own centre towards the east."
(Book I, Chapter XIII, p. 29)
[emphasis added by me]