808156940

素因数分解:

$2^2\times 5^1\times {\mathrm{40407847}}^1$

素因数の和:40407856

約数の個数: 12

約数和(自身を含む): 1697129616

約数和(自身を除く): 888972676

約数列:

[1, 2, 4, 5, 10, 20, 40407847, 80815694, 161631388, 202039235, 404078470, 808156940]

約数ペア:

[(1, 808156940), (2, 404078470), (4, 202039235), (5, 161631388), (10, 80815694), (20, 40407847)]