4438220

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^2\times {\mathrm{79}}^1$

素因数の和:194

約数の個数: 36

約数和(自身を含む): 9619680

約数和(自身を除く): 5181460

約数列:

[1, 2, 4, 5, 10, 20, 53, 79, 106, 158, 212, 265, 316, 395, 530, 790, 1060, 1580, 2809, 4187, 5618, 8374, 11236, 14045, 16748, 20935, 28090, 41870, 56180, 83740, 221911, 443822, 887644, 1109555, 2219110, 4438220]

約数ペア:

[(1, 4438220), (2, 2219110), (4, 1109555), (5, 887644), (10, 443822), (20, 221911), (53, 83740), (79, 56180), (106, 41870), (158, 28090), (212, 20935), (265, 16748), (316, 14045), (395, 11236), (530, 8374), (790, 5618), (1060, 4187), (1580, 2809)]