85429220

素因数分解:

$2^2\times 5^1\times {\mathrm{4271461}}^1$

素因数の和:4271470

約数の個数: 12

約数和(自身を含む): 179401404

約数和(自身を除く): 93972184

約数列:

[1, 2, 4, 5, 10, 20, 4271461, 8542922, 17085844, 21357305, 42714610, 85429220]

約数ペア:

[(1, 85429220), (2, 42714610), (4, 21357305), (5, 17085844), (10, 8542922), (20, 4271461)]