1538006420

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1260661}}^1$

素因数の和:1260731

約数の個数: 24

約数和(自身を含む): 3282763848

約数和(自身を除く): 1744757428

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 1260661, 2521322, 5042644, 6303305, 12606610, 25213220, 76900321, 153800642, 307601284, 384501605, 769003210, 1538006420]

約数ペア:

[(1, 1538006420), (2, 769003210), (4, 384501605), (5, 307601284), (10, 153800642), (20, 76900321), (61, 25213220), (122, 12606610), (244, 6303305), (305, 5042644), (610, 2521322), (1220, 1260661)]