2021842960

素因数分解:

$2^4\times 5^1\times {\mathrm{25273037}}^1$

素因数の和:25273050

約数の個数: 20

約数和(自身を含む): 4700785068

約数和(自身を除く): 2678942108

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 25273037, 50546074, 101092148, 126365185, 202184296, 252730370, 404368592, 505460740, 1010921480, 2021842960]

約数ペア:

[(1, 2021842960), (2, 1010921480), (4, 505460740), (5, 404368592), (8, 252730370), (10, 202184296), (16, 126365185), (20, 101092148), (40, 50546074), (80, 25273037)]