20125971310

素因数分解:

$2^1\times 5^1\times {\mathrm{7877}}^1\times {\mathrm{255503}}^1$

素因数の和:263387

約数の個数: 16

約数和(自身を含む): 36231489216

約数和(自身を除く): 16105517906

約数列:

[1, 2, 5, 10, 7877, 15754, 39385, 78770, 255503, 511006, 1277515, 2555030, 2012597131, 4025194262, 10062985655, 20125971310]

約数ペア:

[(1, 20125971310), (2, 10062985655), (5, 4025194262), (10, 2012597131), (7877, 2555030), (15754, 1277515), (39385, 511006), (78770, 255503)]