18720675

素因数分解:

$3^2\times 5^2\times {\mathrm{83203}}^1$

素因数の和:83219

約数の個数: 18

約数和(自身を含む): 33531212

約数和(自身を除く): 14810537

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 83203, 249609, 416015, 748827, 1248045, 2080075, 3744135, 6240225, 18720675]

約数ペア:

[(1, 18720675), (3, 6240225), (5, 3744135), (9, 2080075), (15, 1248045), (25, 748827), (45, 416015), (75, 249609), (225, 83203)]