900225

素因数分解:

$3^2\times 5^2\times {\mathrm{4001}}^1$

素因数の和:4017

約数の個数: 18

約数和(自身を含む): 1612806

約数和(自身を除く): 712581

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 4001, 12003, 20005, 36009, 60015, 100025, 180045, 300075, 900225]

約数ペア:

[(1, 900225), (3, 300075), (5, 180045), (9, 100025), (15, 60015), (25, 36009), (45, 20005), (75, 12003), (225, 4001)]