16990125

素因数分解:

$3^1\times 5^3\times {\mathrm{45307}}^1$

素因数の和:45325

約数の個数: 16

約数和(自身を含む): 28272192

約数和(自身を除く): 11282067

約数列:

[1, 3, 5, 15, 25, 75, 125, 375, 45307, 135921, 226535, 679605, 1132675, 3398025, 5663375, 16990125]

約数ペア:

[(1, 16990125), (3, 5663375), (5, 3398025), (15, 1132675), (25, 679605), (75, 226535), (125, 135921), (375, 45307)]