89971640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{204481}}^1$

素因数の和:204503

約数の個数: 32

約数和(自身を含む): 220840560

約数和(自身を除く): 130868920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 204481, 408962, 817924, 1022405, 1635848, 2044810, 2249291, 4089620, 4498582, 8179240, 8997164, 11246455, 17994328, 22492910, 44985820, 89971640]

約数ペア:

[(1, 89971640), (2, 44985820), (4, 22492910), (5, 17994328), (8, 11246455), (10, 8997164), (11, 8179240), (20, 4498582), (22, 4089620), (40, 2249291), (44, 2044810), (55, 1635848), (88, 1022405), (110, 817924), (220, 408962), (440, 204481)]