18917031020

素因数分解:

$2^2\times 5^1\times {\mathrm{11549}}^1\times {\mathrm{81899}}^1$

素因数の和:93457

約数の個数: 24

約数和(自身を含む): 39729690000

約数和(自身を除く): 20812658980

約数列:

[1, 2, 4, 5, 10, 20, 11549, 23098, 46196, 57745, 81899, 115490, 163798, 230980, 327596, 409495, 818990, 1637980, 945851551, 1891703102, 3783406204, 4729257755, 9458515510, 18917031020]

約数ペア:

[(1, 18917031020), (2, 9458515510), (4, 4729257755), (5, 3783406204), (10, 1891703102), (20, 945851551), (11549, 1637980), (23098, 818990), (46196, 409495), (57745, 327596), (81899, 230980), (115490, 163798)]