90268180

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^2\times {\mathrm{2441}}^1$

素因数の和:2536

約数の個数: 36

約数和(自身を含む): 194153652

約数和(自身を除く): 103885472

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 1849, 2441, 3698, 4882, 7396, 9245, 9764, 12205, 18490, 24410, 36980, 48820, 104963, 209926, 419852, 524815, 1049630, 2099260, 4513409, 9026818, 18053636, 22567045, 45134090, 90268180]

約数ペア:

[(1, 90268180), (2, 45134090), (4, 22567045), (5, 18053636), (10, 9026818), (20, 4513409), (43, 2099260), (86, 1049630), (172, 524815), (215, 419852), (430, 209926), (860, 104963), (1849, 48820), (2441, 36980), (3698, 24410), (4882, 18490), (7396, 12205), (9245, 9764)]