18895180

素因数分解:

$2^2\times 5^1\times {\mathrm{967}}^1\times {\mathrm{977}}^1$

素因数の和:1953

約数の個数: 24

約数和(自身を含む): 39761568

約数和(自身を除く): 20866388

約数列:

[1, 2, 4, 5, 10, 20, 967, 977, 1934, 1954, 3868, 3908, 4835, 4885, 9670, 9770, 19340, 19540, 944759, 1889518, 3779036, 4723795, 9447590, 18895180]

約数ペア:

[(1, 18895180), (2, 9447590), (4, 4723795), (5, 3779036), (10, 1889518), (20, 944759), (967, 19540), (977, 19340), (1934, 9770), (1954, 9670), (3868, 4885), (3908, 4835)]