18537640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{42131}}^1$

素因数の和:42153

約数の個数: 32

約数和(自身を含む): 45502560

約数和(自身を除く): 26964920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 42131, 84262, 168524, 210655, 337048, 421310, 463441, 842620, 926882, 1685240, 1853764, 2317205, 3707528, 4634410, 9268820, 18537640]

約数ペア:

[(1, 18537640), (2, 9268820), (4, 4634410), (5, 3707528), (8, 2317205), (10, 1853764), (11, 1685240), (20, 926882), (22, 842620), (40, 463441), (44, 421310), (55, 337048), (88, 210655), (110, 168524), (220, 84262), (440, 42131)]