18731920

素因数分解:

$2^4\times 5^1\times {\mathrm{234149}}^1$

素因数の和:234162

約数の個数: 20

約数和(自身を含む): 43551900

約数和(自身を除く): 24819980

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 234149, 468298, 936596, 1170745, 1873192, 2341490, 3746384, 4682980, 9365960, 18731920]

約数ペア:

[(1, 18731920), (2, 9365960), (4, 4682980), (5, 3746384), (8, 2341490), (10, 1873192), (16, 1170745), (20, 936596), (40, 468298), (80, 234149)]