8681020

素因数分解:

$2^2\times 5^1\times {\mathrm{421}}^1\times {\mathrm{1031}}^1$

素因数の和:1461

約数の個数: 24

約数和(自身を含む): 18291168

約数和(自身を除く): 9610148

約数列:

[1, 2, 4, 5, 10, 20, 421, 842, 1031, 1684, 2062, 2105, 4124, 4210, 5155, 8420, 10310, 20620, 434051, 868102, 1736204, 2170255, 4340510, 8681020]

約数ペア:

[(1, 8681020), (2, 4340510), (4, 2170255), (5, 1736204), (10, 868102), (20, 434051), (421, 20620), (842, 10310), (1031, 8420), (1684, 5155), (2062, 4210), (2105, 4124)]