20278516

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{181}}^1\times {\mathrm{757}}^1$

素因数の和:979

約数の個数: 24

約数和(自身を含む): 36696296

約数和(自身を除く): 16417780

約数列:

[1, 2, 4, 37, 74, 148, 181, 362, 724, 757, 1514, 3028, 6697, 13394, 26788, 28009, 56018, 112036, 137017, 274034, 548068, 5069629, 10139258, 20278516]

約数ペア:

[(1, 20278516), (2, 10139258), (4, 5069629), (37, 548068), (74, 274034), (148, 137017), (181, 112036), (362, 56018), (724, 28009), (757, 26788), (1514, 13394), (3028, 6697)]