20556310

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{18859}}^1$

素因数の和:18975

約数の個数: 16

約数和(自身を含む): 37342800

約数和(自身を除く): 16786490

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 18859, 37718, 94295, 188590, 2055631, 4111262, 10278155, 20556310]

約数ペア:

[(1, 20556310), (2, 10278155), (5, 4111262), (10, 2055631), (109, 188590), (218, 94295), (545, 37718), (1090, 18859)]