81904660

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{36241}}^1$

素因数の和:36363

約数の個数: 24

約数和(自身を含む): 173526696

約数和(自身を除く): 91622036

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 452, 565, 1130, 2260, 36241, 72482, 144964, 181205, 362410, 724820, 4095233, 8190466, 16380932, 20476165, 40952330, 81904660]

約数ペア:

[(1, 81904660), (2, 40952330), (4, 20476165), (5, 16380932), (10, 8190466), (20, 4095233), (113, 724820), (226, 362410), (452, 181205), (565, 144964), (1130, 72482), (2260, 36241)]