129384020

素因数分解:

$2^2\times 5^1\times {\mathrm{1291}}^1\times {\mathrm{5011}}^1$

素因数の和:6311

約数の個数: 24

約数和(自身を含む): 271971168

約数和(自身を除く): 142587148

約数列:

[1, 2, 4, 5, 10, 20, 1291, 2582, 5011, 5164, 6455, 10022, 12910, 20044, 25055, 25820, 50110, 100220, 6469201, 12938402, 25876804, 32346005, 64692010, 129384020]

約数ペア:

[(1, 129384020), (2, 64692010), (4, 32346005), (5, 25876804), (10, 12938402), (20, 6469201), (1291, 100220), (2582, 50110), (5011, 25820), (5164, 25055), (6455, 20044), (10022, 12910)]