8124740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31249}}^1$

素因数の和:31271

約数の個数: 24

約数和(自身を含む): 18375000

約数和(自身を除く): 10250260

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 31249, 62498, 124996, 156245, 312490, 406237, 624980, 812474, 1624948, 2031185, 4062370, 8124740]

約数ペア:

[(1, 8124740), (2, 4062370), (4, 2031185), (5, 1624948), (10, 812474), (13, 624980), (20, 406237), (26, 312490), (52, 156245), (65, 124996), (130, 62498), (260, 31249)]