6640017640

素因数分解:

$2^3\times 5^1\times {\mathrm{166000441}}^1$

素因数の和:166000452

約数の個数: 16

約数和(自身を含む): 14940039780

約数和(自身を除く): 8300022140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 166000441, 332000882, 664001764, 830002205, 1328003528, 1660004410, 3320008820, 6640017640]

約数ペア:

[(1, 6640017640), (2, 3320008820), (4, 1660004410), (5, 1328003528), (8, 830002205), (10, 664001764), (20, 332000882), (40, 166000441)]