81427450

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{7369}}^1$

素因数の和:7411

約数の個数: 48

約数和(自身を含む): 172723320

約数和(自身を除く): 91295870

約数列:

[1, 2, 5, 10, 13, 17, 25, 26, 34, 50, 65, 85, 130, 170, 221, 325, 425, 442, 650, 850, 1105, 2210, 5525, 7369, 11050, 14738, 36845, 73690, 95797, 125273, 184225, 191594, 250546, 368450, 478985, 626365, 957970, 1252730, 1628549, 2394925, 3131825, 3257098, 4789850, 6263650, 8142745, 16285490, 40713725, 81427450]

約数ペア:

[(1, 81427450), (2, 40713725), (5, 16285490), (10, 8142745), (13, 6263650), (17, 4789850), (25, 3257098), (26, 3131825), (34, 2394925), (50, 1628549), (65, 1252730), (85, 957970), (130, 626365), (170, 478985), (221, 368450), (325, 250546), (425, 191594), (442, 184225), (650, 125273), (850, 95797), (1105, 73690), (2210, 36845), (5525, 14738), (7369, 11050)]