3900996980

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{223}}^1\times {\mathrm{20341}}^1$

素因数の和:20616

約数の個数: 48

約数和(自身を含む): 8420611584

約数和(自身を除く): 4519614604

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 223, 430, 446, 860, 892, 1115, 2230, 4460, 9589, 19178, 20341, 38356, 40682, 47945, 81364, 95890, 101705, 191780, 203410, 406820, 874663, 1749326, 3498652, 4373315, 4536043, 8746630, 9072086, 17493260, 18144172, 22680215, 45360430, 90720860, 195049849, 390099698, 780199396, 975249245, 1950498490, 3900996980]

約数ペア:

[(1, 3900996980), (2, 1950498490), (4, 975249245), (5, 780199396), (10, 390099698), (20, 195049849), (43, 90720860), (86, 45360430), (172, 22680215), (215, 18144172), (223, 17493260), (430, 9072086), (446, 8746630), (860, 4536043), (892, 4373315), (1115, 3498652), (2230, 1749326), (4460, 874663), (9589, 406820), (19178, 203410), (20341, 191780), (38356, 101705), (40682, 95890), (47945, 81364)]