Answer:
I haven't done this in a while but I believe the answer is that the prime factorization of 280 is 2^3 x 5 x 7.
And the factors of 280 are 1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, and 280.
I hope I helped ^^
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