221921080

素因数分解:

$2^3\times 5^1\times {\mathrm{5548027}}^1$

素因数の和:5548038

約数の個数: 16

約数和(自身を含む): 499322520

約数和(自身を除く): 277401440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5548027, 11096054, 22192108, 27740135, 44384216, 55480270, 110960540, 221921080]

約数ペア:

[(1, 221921080), (2, 110960540), (4, 55480270), (5, 44384216), (8, 27740135), (10, 22192108), (20, 11096054), (40, 5548027)]