18230020

素因数分解:

$2^2\times 5^1\times {\mathrm{359}}^1\times {\mathrm{2539}}^1$

素因数の和:2907

約数の個数: 24

約数和(自身を含む): 38404800

約数和(自身を除く): 20174780

約数列:

[1, 2, 4, 5, 10, 20, 359, 718, 1436, 1795, 2539, 3590, 5078, 7180, 10156, 12695, 25390, 50780, 911501, 1823002, 3646004, 4557505, 9115010, 18230020]

約数ペア:

[(1, 18230020), (2, 9115010), (4, 4557505), (5, 3646004), (10, 1823002), (20, 911501), (359, 50780), (718, 25390), (1436, 12695), (1795, 10156), (2539, 7180), (3590, 5078)]