13280125

素因数分解:

$5^3\times {\mathrm{131}}^1\times {\mathrm{811}}^1$

素因数の和:957

約数の個数: 16

約数和(自身を含む): 16720704

約数和(自身を除く): 3440579

約数列:

[1, 5, 25, 125, 131, 655, 811, 3275, 4055, 16375, 20275, 101375, 106241, 531205, 2656025, 13280125]

約数ペア:

[(1, 13280125), (5, 2656025), (25, 531205), (125, 106241), (131, 101375), (655, 20275), (811, 16375), (3275, 4055)]