68911820

素因数分解:

$2^2\times 5^1\times {\mathrm{881}}^1\times {\mathrm{3911}}^1$

素因数の和:4801

約数の個数: 24

約数和(自身を含む): 144916128

約数和(自身を除く): 76004308

約数列:

[1, 2, 4, 5, 10, 20, 881, 1762, 3524, 3911, 4405, 7822, 8810, 15644, 17620, 19555, 39110, 78220, 3445591, 6891182, 13782364, 17227955, 34455910, 68911820]

約数ペア:

[(1, 68911820), (2, 34455910), (4, 17227955), (5, 13782364), (10, 6891182), (20, 3445591), (881, 78220), (1762, 39110), (3524, 19555), (3911, 17620), (4405, 15644), (7822, 8810)]