161811920

素因数分解:

$2^4\times 5^1\times {\mathrm{2022649}}^1$

素因数の和:2022662

約数の個数: 20

約数和(自身を含む): 376212900

約数和(自身を除く): 214400980

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2022649, 4045298, 8090596, 10113245, 16181192, 20226490, 32362384, 40452980, 80905960, 161811920]

約数ペア:

[(1, 161811920), (2, 80905960), (4, 40452980), (5, 32362384), (8, 20226490), (10, 16181192), (16, 10113245), (20, 8090596), (40, 4045298), (80, 2022649)]