20425495

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{3779}}^1$

素因数の和:3854

約数の個数: 16

約数和(自身を含む): 26127360

約数和(自身を除く): 5701865

約数列:

[1, 5, 23, 47, 115, 235, 1081, 3779, 5405, 18895, 86917, 177613, 434585, 888065, 4085099, 20425495]

約数ペア:

[(1, 20425495), (5, 4085099), (23, 888065), (47, 434585), (115, 177613), (235, 86917), (1081, 18895), (3779, 5405)]