128782167340

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{47000791}}^1$

素因数の和:47000937

約数の個数: 24

約数和(自身を含む): 272416590432

約数和(自身を除く): 143634423092

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 47000791, 94001582, 188003164, 235003955, 470007910, 940015820, 6439108367, 12878216734, 25756433468, 32195541835, 64391083670, 128782167340]

約数ペア:

[(1, 128782167340), (2, 64391083670), (4, 32195541835), (5, 25756433468), (10, 12878216734), (20, 6439108367), (137, 940015820), (274, 470007910), (548, 235003955), (685, 188003164), (1370, 94001582), (2740, 47000791)]