8656220

素因数分解:

$2^2\times 5^1\times {\mathrm{443}}^1\times {\mathrm{977}}^1$

素因数の和:1429

約数の個数: 24

約数和(自身を含む): 18237744

約数和(自身を除く): 9581524

約数列:

[1, 2, 4, 5, 10, 20, 443, 886, 977, 1772, 1954, 2215, 3908, 4430, 4885, 8860, 9770, 19540, 432811, 865622, 1731244, 2164055, 4328110, 8656220]

約数ペア:

[(1, 8656220), (2, 4328110), (4, 2164055), (5, 1731244), (10, 865622), (20, 432811), (443, 19540), (886, 9770), (977, 8860), (1772, 4885), (1954, 4430), (2215, 3908)]