20905565

素因数分解:

$5^1\times {\mathrm{113}}^1\times {\mathrm{163}}^1\times {\mathrm{227}}^1$

素因数の和:508

約数の個数: 16

約数和(自身を含む): 25576128

約数和(自身を除く): 4670563

約数列:

[1, 5, 113, 163, 227, 565, 815, 1135, 18419, 25651, 37001, 92095, 128255, 185005, 4181113, 20905565]

約数ペア:

[(1, 20905565), (5, 4181113), (113, 185005), (163, 128255), (227, 92095), (565, 37001), (815, 25651), (1135, 18419)]