18830825

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{4457}}^1$

素因数の和:4493

約数の個数: 18

約数和(自身を含む): 25290234

約数和(自身を除く): 6459409

約数列:

[1, 5, 13, 25, 65, 169, 325, 845, 4225, 4457, 22285, 57941, 111425, 289705, 753233, 1448525, 3766165, 18830825]

約数ペア:

[(1, 18830825), (5, 3766165), (13, 1448525), (25, 753233), (65, 289705), (169, 111425), (325, 57941), (845, 22285), (4225, 4457)]