257520185

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{107077}}^1$

素因数の和:107132

約数の個数: 16

約数和(自身を含む): 341792976

約数和(自身を除く): 84272791

約数列:

[1, 5, 13, 37, 65, 185, 481, 2405, 107077, 535385, 1392001, 3961849, 6960005, 19809245, 51504037, 257520185]

約数ペア:

[(1, 257520185), (5, 51504037), (13, 19809245), (37, 6960005), (65, 3961849), (185, 1392001), (481, 535385), (2405, 107077)]