20792180

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{11681}}^1$

素因数の和:11779

約数の個数: 24

約数和(自身を含む): 44157960

約数和(自身を除く): 23365780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 11681, 23362, 46724, 58405, 116810, 233620, 1039609, 2079218, 4158436, 5198045, 10396090, 20792180]

約数ペア:

[(1, 20792180), (2, 10396090), (4, 5198045), (5, 4158436), (10, 2079218), (20, 1039609), (89, 233620), (178, 116810), (356, 58405), (445, 46724), (890, 23362), (1780, 11681)]