891920

素因数分解:

$2^4\times 5^1\times {\mathrm{11149}}^1$

素因数の和:11162

約数の個数: 20

約数和(自身を含む): 2073900

約数和(自身を除く): 1181980

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 11149, 22298, 44596, 55745, 89192, 111490, 178384, 222980, 445960, 891920]

約数ペア:

[(1, 891920), (2, 445960), (4, 222980), (5, 178384), (8, 111490), (10, 89192), (16, 55745), (20, 44596), (40, 22298), (80, 11149)]