12720875

素因数分解:

$5^3\times {\mathrm{149}}^1\times {\mathrm{683}}^1$

素因数の和:847

約数の個数: 16

約数和(自身を含む): 16005600

約数和(自身を除く): 3284725

約数列:

[1, 5, 25, 125, 149, 683, 745, 3415, 3725, 17075, 18625, 85375, 101767, 508835, 2544175, 12720875]

約数ペア:

[(1, 12720875), (5, 2544175), (25, 508835), (125, 101767), (149, 85375), (683, 18625), (745, 17075), (3415, 3725)]