720532017

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{439}}^1\times {\mathrm{881}}^1$

素因数の和:1355

約数の個数: 40

約数和(自身を含む): 1126984320

約数和(自身を除く): 406452303

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 439, 621, 881, 1317, 1863, 2643, 3951, 7929, 10097, 11853, 20263, 23787, 30291, 35559, 60789, 71361, 90873, 182367, 272619, 386759, 547101, 817857, 1160277, 1641303, 3480831, 8895457, 10442493, 26686371, 31327479, 80059113, 240177339, 720532017]

約数ペア:

[(1, 720532017), (3, 240177339), (9, 80059113), (23, 31327479), (27, 26686371), (69, 10442493), (81, 8895457), (207, 3480831), (439, 1641303), (621, 1160277), (881, 817857), (1317, 547101), (1863, 386759), (2643, 272619), (3951, 182367), (7929, 90873), (10097, 71361), (11853, 60789), (20263, 35559), (23787, 30291)]