78765820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{562613}}^1$

素因数の和:562629

約数の個数: 24

約数和(自身を含む): 189038304

約数和(自身を除く): 110272484

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 562613, 1125226, 2250452, 2813065, 3938291, 5626130, 7876582, 11252260, 15753164, 19691455, 39382910, 78765820]

約数ペア:

[(1, 78765820), (2, 39382910), (4, 19691455), (5, 15753164), (7, 11252260), (10, 7876582), (14, 5626130), (20, 3938291), (28, 2813065), (35, 2250452), (70, 1125226), (140, 562613)]