9958820

素因数分解:

$2^2\times 5^1\times {\mathrm{449}}^1\times {\mathrm{1109}}^1$

素因数の和:1567

約数の個数: 24

約数和(自身を含む): 20979000

約数和(自身を除く): 11020180

約数列:

[1, 2, 4, 5, 10, 20, 449, 898, 1109, 1796, 2218, 2245, 4436, 4490, 5545, 8980, 11090, 22180, 497941, 995882, 1991764, 2489705, 4979410, 9958820]

約数ペア:

[(1, 9958820), (2, 4979410), (4, 2489705), (5, 1991764), (10, 995882), (20, 497941), (449, 22180), (898, 11090), (1109, 8980), (1796, 5545), (2218, 4490), (2245, 4436)]