156912020

素因数分解:

$2^2\times 5^1\times {\mathrm{2801}}^2$

素因数の和:5611

約数の個数: 18

約数和(自身を含む): 329632926

約数和(自身を除く): 172720906

約数列:

[1, 2, 4, 5, 10, 20, 2801, 5602, 11204, 14005, 28010, 56020, 7845601, 15691202, 31382404, 39228005, 78456010, 156912020]

約数ペア:

[(1, 156912020), (2, 78456010), (4, 39228005), (5, 31382404), (10, 15691202), (20, 7845601), (2801, 56020), (5602, 28010), (11204, 14005)]