280424511

素因数分解:

$3^4\times {\mathrm{71}}^1\times {\mathrm{48761}}^1$

素因数の和:48844

約数の個数: 20

約数和(自身を含む): 424814544

約数和(自身を除く): 144390033

約数列:

[1, 3, 9, 27, 71, 81, 213, 639, 1917, 5751, 48761, 146283, 438849, 1316547, 3462031, 3949641, 10386093, 31158279, 93474837, 280424511]

約数ペア:

[(1, 280424511), (3, 93474837), (9, 31158279), (27, 10386093), (71, 3949641), (81, 3462031), (213, 1316547), (639, 438849), (1917, 146283), (5751, 48761)]