20426345

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{163}}^1\times {\mathrm{353}}^1$

素因数の和:592

約数の個数: 16

約数和(自身を含む): 25080192

約数和(自身を除く): 4653847

約数列:

[1, 5, 71, 163, 353, 355, 815, 1765, 11573, 25063, 57539, 57865, 125315, 287695, 4085269, 20426345]

約数ペア:

[(1, 20426345), (5, 4085269), (71, 287695), (163, 125315), (353, 57865), (355, 57539), (815, 25063), (1765, 11573)]