1990647920

素因数分解:

$2^4\times 5^1\times {\mathrm{24883099}}^1$

素因数の和:24883112

約数の個数: 20

約数和(自身を含む): 4628256600

約数和(自身を除く): 2637608680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 24883099, 49766198, 99532396, 124415495, 199064792, 248830990, 398129584, 497661980, 995323960, 1990647920]

約数ペア:

[(1, 1990647920), (2, 995323960), (4, 497661980), (5, 398129584), (8, 248830990), (10, 199064792), (16, 124415495), (20, 99532396), (40, 49766198), (80, 24883099)]