18260020

素因数分解:

$2^2\times 5^1\times {\mathrm{419}}^1\times {\mathrm{2179}}^1$

素因数の和:2607

約数の個数: 24

約数和(自身を含む): 38455200

約数和(自身を除く): 20195180

約数列:

[1, 2, 4, 5, 10, 20, 419, 838, 1676, 2095, 2179, 4190, 4358, 8380, 8716, 10895, 21790, 43580, 913001, 1826002, 3652004, 4565005, 9130010, 18260020]

約数ペア:

[(1, 18260020), (2, 9130010), (4, 4565005), (5, 3652004), (10, 1826002), (20, 913001), (419, 43580), (838, 21790), (1676, 10895), (2095, 8716), (2179, 8380), (4190, 4358)]