810507920

素因数分解:

$2^4\times 5^1\times {\mathrm{10131349}}^1$

素因数の和:10131362

約数の個数: 20

約数和(自身を含む): 1884431100

約数和(自身を除く): 1073923180

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 10131349, 20262698, 40525396, 50656745, 81050792, 101313490, 162101584, 202626980, 405253960, 810507920]

約数ペア:

[(1, 810507920), (2, 405253960), (4, 202626980), (5, 162101584), (8, 101313490), (10, 81050792), (16, 50656745), (20, 40525396), (40, 20262698), (80, 10131349)]