207639340

素因数分解:

$2^2\times 5^1\times {\mathrm{521}}^1\times {\mathrm{19927}}^1$

素因数の和:20457

約数の個数: 24

約数和(自身を含む): 436901472

約数和(自身を除く): 229262132

約数列:

[1, 2, 4, 5, 10, 20, 521, 1042, 2084, 2605, 5210, 10420, 19927, 39854, 79708, 99635, 199270, 398540, 10381967, 20763934, 41527868, 51909835, 103819670, 207639340]

約数ペア:

[(1, 207639340), (2, 103819670), (4, 51909835), (5, 41527868), (10, 20763934), (20, 10381967), (521, 398540), (1042, 199270), (2084, 99635), (2605, 79708), (5210, 39854), (10420, 19927)]