128515985

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{53437}}^1$

素因数の和:53492

約数の個数: 16

約数和(自身を含む): 170574096

約数和(自身を除く): 42058111

約数列:

[1, 5, 13, 37, 65, 185, 481, 2405, 53437, 267185, 694681, 1977169, 3473405, 9885845, 25703197, 128515985]

約数ペア:

[(1, 128515985), (5, 25703197), (13, 9885845), (37, 3473405), (65, 1977169), (185, 694681), (481, 267185), (2405, 53437)]