639696536

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{1231}}^1\times {\mathrm{3821}}^1$

素因数の和:5075

約数の個数: 32

約数和(自身を含む): 1271350080

約数和(自身を除く): 631653544

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 1231, 2462, 3821, 4924, 7642, 9848, 15284, 20927, 30568, 41854, 64957, 83708, 129914, 167416, 259828, 519656, 4703651, 9407302, 18814604, 37629208, 79962067, 159924134, 319848268, 639696536]

約数ペア:

[(1, 639696536), (2, 319848268), (4, 159924134), (8, 79962067), (17, 37629208), (34, 18814604), (68, 9407302), (136, 4703651), (1231, 519656), (2462, 259828), (3821, 167416), (4924, 129914), (7642, 83708), (9848, 64957), (15284, 41854), (20927, 30568)]