12913978225

素因数分解:

$5^2\times {\mathrm{43}}^1\times {\mathrm{3001}}^1\times {\mathrm{4003}}^1$

素因数の和:7057

約数の個数: 24

約数和(自身を含む): 16395290912

約数和(自身を除く): 3481312687

約数列:

[1, 5, 25, 43, 215, 1075, 3001, 4003, 15005, 20015, 75025, 100075, 129043, 172129, 645215, 860645, 3226075, 4303225, 12013003, 60065015, 300325075, 516559129, 2582795645, 12913978225]

約数ペア:

[(1, 12913978225), (5, 2582795645), (25, 516559129), (43, 300325075), (215, 60065015), (1075, 12013003), (3001, 4303225), (4003, 3226075), (15005, 860645), (20015, 645215), (75025, 172129), (100075, 129043)]