19155820

素因数分解:

$2^2\times 5^1\times {\mathrm{811}}^1\times {\mathrm{1181}}^1$

素因数の和:2001

約数の個数: 24

約数和(自身を含む): 40310928

約数和(自身を除く): 21155108

約数列:

[1, 2, 4, 5, 10, 20, 811, 1181, 1622, 2362, 3244, 4055, 4724, 5905, 8110, 11810, 16220, 23620, 957791, 1915582, 3831164, 4788955, 9577910, 19155820]

約数ペア:

[(1, 19155820), (2, 9577910), (4, 4788955), (5, 3831164), (10, 1915582), (20, 957791), (811, 23620), (1181, 16220), (1622, 11810), (2362, 8110), (3244, 5905), (4055, 4724)]