18564020

素因数分解:

$2^2\times 5^1\times {\mathrm{631}}^1\times {\mathrm{1471}}^1$

素因数の和:2111

約数の個数: 24

約数和(自身を含む): 39072768

約数和(自身を除く): 20508748

約数列:

[1, 2, 4, 5, 10, 20, 631, 1262, 1471, 2524, 2942, 3155, 5884, 6310, 7355, 12620, 14710, 29420, 928201, 1856402, 3712804, 4641005, 9282010, 18564020]

約数ペア:

[(1, 18564020), (2, 9282010), (4, 4641005), (5, 3712804), (10, 1856402), (20, 928201), (631, 29420), (1262, 14710), (1471, 12620), (2524, 7355), (2942, 6310), (3155, 5884)]