20500225

素因数分解:

$5^2\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{239}}^1$

素因数の和:369

約数の個数: 24

約数和(自身を含む): 26426880

約数和(自身を除く): 5926655

約数列:

[1, 5, 25, 47, 73, 235, 239, 365, 1175, 1195, 1825, 3431, 5975, 11233, 17155, 17447, 56165, 85775, 87235, 280825, 436175, 820009, 4100045, 20500225]

約数ペア:

[(1, 20500225), (5, 4100045), (25, 820009), (47, 436175), (73, 280825), (235, 87235), (239, 85775), (365, 56165), (1175, 17447), (1195, 17155), (1825, 11233), (3431, 5975)]