4049020

素因数分解:

$2^2\times 5^1\times {\mathrm{443}}^1\times {\mathrm{457}}^1$

素因数の和:909

約数の個数: 24

約数和(自身を含む): 8540784

約数和(自身を除く): 4491764

約数列:

[1, 2, 4, 5, 10, 20, 443, 457, 886, 914, 1772, 1828, 2215, 2285, 4430, 4570, 8860, 9140, 202451, 404902, 809804, 1012255, 2024510, 4049020]

約数ペア:

[(1, 4049020), (2, 2024510), (4, 1012255), (5, 809804), (10, 404902), (20, 202451), (443, 9140), (457, 8860), (886, 4570), (914, 4430), (1772, 2285), (1828, 2215)]