20185884580

素因数分解:

$2^2\times 5^1\times {\mathrm{2579}}^1\times {\mathrm{391351}}^1$

素因数の和:393939

約数の個数: 24

約数和(自身を含む): 42406902720

約数和(自身を除く): 22221018140

約数列:

[1, 2, 4, 5, 10, 20, 2579, 5158, 10316, 12895, 25790, 51580, 391351, 782702, 1565404, 1956755, 3913510, 7827020, 1009294229, 2018588458, 4037176916, 5046471145, 10092942290, 20185884580]

約数ペア:

[(1, 20185884580), (2, 10092942290), (4, 5046471145), (5, 4037176916), (10, 2018588458), (20, 1009294229), (2579, 7827020), (5158, 3913510), (10316, 1956755), (12895, 1565404), (25790, 782702), (51580, 391351)]