20763921020

素因数分解:

$2^2\times 5^1\times {\mathrm{4111}}^1\times {\mathrm{252541}}^1$

素因数の和:256661

約数の個数: 24

約数和(自身を含む): 43615013568

約数和(自身を除く): 22851092548

約数列:

[1, 2, 4, 5, 10, 20, 4111, 8222, 16444, 20555, 41110, 82220, 252541, 505082, 1010164, 1262705, 2525410, 5050820, 1038196051, 2076392102, 4152784204, 5190980255, 10381960510, 20763921020]

約数ペア:

[(1, 20763921020), (2, 10381960510), (4, 5190980255), (5, 4152784204), (10, 2076392102), (20, 1038196051), (4111, 5050820), (8222, 2525410), (16444, 1262705), (20555, 1010164), (41110, 505082), (82220, 252541)]