1280625

素因数分解:

$3^1\times 5^4\times {\mathrm{683}}^1$

素因数の和:706

約数の個数: 20

約数和(自身を含む): 2136816

約数和(自身を除く): 856191

約数列:

[1, 3, 5, 15, 25, 75, 125, 375, 625, 683, 1875, 2049, 3415, 10245, 17075, 51225, 85375, 256125, 426875, 1280625]

約数ペア:

[(1, 1280625), (3, 426875), (5, 256125), (15, 85375), (25, 51225), (75, 17075), (125, 10245), (375, 3415), (625, 2049), (683, 1875)]