216914960

素因数分解:

$2^4\times 5^1\times {\mathrm{2711437}}^1$

素因数の和:2711450

約数の個数: 20

約数和(自身を含む): 504327468

約数和(自身を除く): 287412508

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2711437, 5422874, 10845748, 13557185, 21691496, 27114370, 43382992, 54228740, 108457480, 216914960]

約数ペア:

[(1, 216914960), (2, 108457480), (4, 54228740), (5, 43382992), (8, 27114370), (10, 21691496), (16, 13557185), (20, 10845748), (40, 5422874), (80, 2711437)]