64927480

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{12781}}^1$

素因数の和:12919

約数の個数: 32

約数和(自身を含む): 147248640

約数和(自身を除く): 82321160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 5080, 12781, 25562, 51124, 63905, 102248, 127810, 255620, 511240, 1623187, 3246374, 6492748, 8115935, 12985496, 16231870, 32463740, 64927480]

約数ペア:

[(1, 64927480), (2, 32463740), (4, 16231870), (5, 12985496), (8, 8115935), (10, 6492748), (20, 3246374), (40, 1623187), (127, 511240), (254, 255620), (508, 127810), (635, 102248), (1016, 63905), (1270, 51124), (2540, 25562), (5080, 12781)]