1990790960

素因数分解:

$2^4\times 5^1\times {\mathrm{24884887}}^1$

素因数の和:24884900

約数の個数: 20

約数和(自身を含む): 4628589168

約数和(自身を除く): 2637798208

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 24884887, 49769774, 99539548, 124424435, 199079096, 248848870, 398158192, 497697740, 995395480, 1990790960]

約数ペア:

[(1, 1990790960), (2, 995395480), (4, 497697740), (5, 398158192), (8, 248848870), (10, 199079096), (16, 124424435), (20, 99539548), (40, 49769774), (80, 24884887)]