31480475

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{7451}}^1$

素因数の和:7487

約数の個数: 18

約数和(自身を含む): 42275196

約数和(自身を除く): 10794721

約数列:

[1, 5, 13, 25, 65, 169, 325, 845, 4225, 7451, 37255, 96863, 186275, 484315, 1259219, 2421575, 6296095, 31480475]

約数ペア:

[(1, 31480475), (5, 6296095), (13, 2421575), (25, 1259219), (65, 484315), (169, 186275), (325, 96863), (845, 37255), (4225, 7451)]