256082020

素因数分解:

$2^2\times 5^1\times {\mathrm{677}}^1\times {\mathrm{18913}}^1$

素因数の和:19599

約数の個数: 24

約数和(自身を含む): 538595064

約数和(自身を除く): 282513044

約数列:

[1, 2, 4, 5, 10, 20, 677, 1354, 2708, 3385, 6770, 13540, 18913, 37826, 75652, 94565, 189130, 378260, 12804101, 25608202, 51216404, 64020505, 128041010, 256082020]

約数ペア:

[(1, 256082020), (2, 128041010), (4, 64020505), (5, 51216404), (10, 25608202), (20, 12804101), (677, 378260), (1354, 189130), (2708, 94565), (3385, 75652), (6770, 37826), (13540, 18913)]