28709705

素因数分解:

$5^1\times {\mathrm{103}}^1\times {\mathrm{107}}^1\times {\mathrm{521}}^1$

素因数の和:736

約数の個数: 16

約数和(自身を含む): 35178624

約数和(自身を除く): 6468919

約数列:

[1, 5, 103, 107, 515, 521, 535, 2605, 11021, 53663, 55105, 55747, 268315, 278735, 5741941, 28709705]

約数ペア:

[(1, 28709705), (5, 5741941), (103, 278735), (107, 268315), (515, 55747), (521, 55105), (535, 53663), (2605, 11021)]