20161116740

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{23443159}}^1$

素因数の和:23443211

約数の個数: 24

約数和(自身を含む): 43322959680

約数和(自身を除く): 23161842940

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 23443159, 46886318, 93772636, 117215795, 234431590, 468863180, 1008055837, 2016111674, 4032223348, 5040279185, 10080558370, 20161116740]

約数ペア:

[(1, 20161116740), (2, 10080558370), (4, 5040279185), (5, 4032223348), (10, 2016111674), (20, 1008055837), (43, 468863180), (86, 234431590), (172, 117215795), (215, 93772636), (430, 46886318), (860, 23443159)]