156965691920

素因数分解:

$2^4\times 5^1\times {\mathrm{1962071149}}^1$

素因数の和:1962071162

約数の個数: 20

約数和(自身を含む): 364945233900

約数和(自身を除く): 207979541980

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1962071149, 3924142298, 7848284596, 9810355745, 15696569192, 19620711490, 31393138384, 39241422980, 78482845960, 156965691920]

約数ペア:

[(1, 156965691920), (2, 78482845960), (4, 39241422980), (5, 31393138384), (8, 19620711490), (10, 15696569192), (16, 9810355745), (20, 7848284596), (40, 3924142298), (80, 1962071149)]