19540180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{88819}}^1$

素因数の和:88839

約数の個数: 24

約数和(自身を含む): 44765280

約数和(自身を除く): 25225100

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 88819, 177638, 355276, 444095, 888190, 977009, 1776380, 1954018, 3908036, 4885045, 9770090, 19540180]

約数ペア:

[(1, 19540180), (2, 9770090), (4, 4885045), (5, 3908036), (10, 1954018), (11, 1776380), (20, 977009), (22, 888190), (44, 444095), (55, 355276), (110, 177638), (220, 88819)]