25920227540

素因数分解:

$2^2\times 5^1\times {\mathrm{1296011377}}^1$

素因数の和:1296011386

約数の個数: 12

約数和(自身を含む): 54432477876

約数和(自身を除く): 28512250336

約数列:

[1, 2, 4, 5, 10, 20, 1296011377, 2592022754, 5184045508, 6480056885, 12960113770, 25920227540]

約数ペア:

[(1, 25920227540), (2, 12960113770), (4, 6480056885), (5, 5184045508), (10, 2592022754), (20, 1296011377)]