721000292

素因数分解:

$2^2\times {\mathrm{661}}^1\times {\mathrm{272693}}^1$

素因数の和:273358

約数の個数: 12

約数和(自身を含む): 1263663996

約数和(自身を除く): 542663704

約数列:

[1, 2, 4, 661, 1322, 2644, 272693, 545386, 1090772, 180250073, 360500146, 721000292]

約数ペア:

[(1, 721000292), (2, 360500146), (4, 180250073), (661, 1090772), (1322, 545386), (2644, 272693)]