20488895

素因数分解:

$5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{5471}}^1$

素因数の和:5590

約数の個数: 16

約数和(自身を含む): 28366848

約数和(自身を除く): 7877953

約数列:

[1, 5, 7, 35, 107, 535, 749, 3745, 5471, 27355, 38297, 191485, 585397, 2926985, 4097779, 20488895]

約数ペア:

[(1, 20488895), (5, 4097779), (7, 2926985), (35, 585397), (107, 191485), (535, 38297), (749, 27355), (3745, 5471)]