15750225

素因数分解:

$3^2\times 5^2\times {\mathrm{70001}}^1$

素因数の和:70017

約数の個数: 18

約数和(自身を含む): 28210806

約数和(自身を除く): 12460581

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 70001, 210003, 350005, 630009, 1050015, 1750025, 3150045, 5250075, 15750225]

約数ペア:

[(1, 15750225), (3, 5250075), (5, 3150045), (9, 1750025), (15, 1050015), (25, 630009), (45, 350005), (75, 210003), (225, 70001)]