20408930

素因数分解:

$2^1\times 5^1\times {\mathrm{113}}^1\times {\mathrm{18061}}^1$

素因数の和:18181

約数の個数: 16

約数和(自身を含む): 37063224

約数和(自身を除く): 16654294

約数列:

[1, 2, 5, 10, 113, 226, 565, 1130, 18061, 36122, 90305, 180610, 2040893, 4081786, 10204465, 20408930]

約数ペア:

[(1, 20408930), (2, 10204465), (5, 4081786), (10, 2040893), (113, 180610), (226, 90305), (565, 36122), (1130, 18061)]