7968830020

素因数分解:

$2^2\times 5^1\times {\mathrm{1289}}^1\times {\mathrm{309109}}^1$

素因数の和:310407

約数の個数: 24

約数和(自身を含む): 16747579800

約数和(自身を除く): 8778749780

約数列:

[1, 2, 4, 5, 10, 20, 1289, 2578, 5156, 6445, 12890, 25780, 309109, 618218, 1236436, 1545545, 3091090, 6182180, 398441501, 796883002, 1593766004, 1992207505, 3984415010, 7968830020]

約数ペア:

[(1, 7968830020), (2, 3984415010), (4, 1992207505), (5, 1593766004), (10, 796883002), (20, 398441501), (1289, 6182180), (2578, 3091090), (5156, 1545545), (6445, 1236436), (12890, 618218), (25780, 309109)]