12691820

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{4259}}^1$

素因数の和:4417

約数の個数: 24

約数和(自身を含む): 26838000

約数和(自身を除く): 14146180

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 745, 1490, 2980, 4259, 8518, 17036, 21295, 42590, 85180, 634591, 1269182, 2538364, 3172955, 6345910, 12691820]

約数ペア:

[(1, 12691820), (2, 6345910), (4, 3172955), (5, 2538364), (10, 1269182), (20, 634591), (149, 85180), (298, 42590), (596, 21295), (745, 17036), (1490, 8518), (2980, 4259)]