797788220

素因数分解:

$2^2\times 5^1\times {\mathrm{39889411}}^1$

素因数の和:39889420

約数の個数: 12

約数和(自身を含む): 1675355304

約数和(自身を除く): 877567084

約数列:

[1, 2, 4, 5, 10, 20, 39889411, 79778822, 159557644, 199447055, 398894110, 797788220]

約数ペア:

[(1, 797788220), (2, 398894110), (4, 199447055), (5, 159557644), (10, 79778822), (20, 39889411)]