20130805

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{5039}}^1$

素因数の和:5108

約数の個数: 16

約数和(自身を含む): 26127360

約数和(自身を除く): 5996555

約数列:

[1, 5, 17, 47, 85, 235, 799, 3995, 5039, 25195, 85663, 236833, 428315, 1184165, 4026161, 20130805]

約数ペア:

[(1, 20130805), (5, 4026161), (17, 1184165), (47, 428315), (85, 236833), (235, 85663), (799, 25195), (3995, 5039)]