289945990

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1\times {\mathrm{3767}}^1$

素因数の和:3996

約数の個数: 32

約数和(自身を含む): 537166080

約数和(自身を除く): 247220090

約数列:

[1, 2, 5, 10, 43, 86, 179, 215, 358, 430, 895, 1790, 3767, 7534, 7697, 15394, 18835, 37670, 38485, 76970, 161981, 323962, 674293, 809905, 1348586, 1619810, 3371465, 6742930, 28994599, 57989198, 144972995, 289945990]

約数ペア:

[(1, 289945990), (2, 144972995), (5, 57989198), (10, 28994599), (43, 6742930), (86, 3371465), (179, 1619810), (215, 1348586), (358, 809905), (430, 674293), (895, 323962), (1790, 161981), (3767, 76970), (7534, 38485), (7697, 37670), (15394, 18835)]