390431665

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{316139}}^1$

素因数の和:316176

約数の個数: 16

約数和(自身を含む): 531115200

約数和(自身を除く): 140683535

約数列:

[1, 5, 13, 19, 65, 95, 247, 1235, 316139, 1580695, 4109807, 6006641, 20549035, 30033205, 78086333, 390431665]

約数ペア:

[(1, 390431665), (5, 78086333), (13, 30033205), (19, 20549035), (65, 6006641), (95, 4109807), (247, 1580695), (1235, 316139)]