720392391

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{247813}}^1$

素因数の和:247855

約数の個数: 24

約数和(自身を含む): 1159769520

約数和(自身を除く): 439377129

約数列:

[1, 3, 9, 17, 19, 51, 57, 153, 171, 323, 969, 2907, 247813, 743439, 2230317, 4212821, 4708447, 12638463, 14125341, 37915389, 42376023, 80043599, 240130797, 720392391]

約数ペア:

[(1, 720392391), (3, 240130797), (9, 80043599), (17, 42376023), (19, 37915389), (51, 14125341), (57, 12638463), (153, 4708447), (171, 4212821), (323, 2230317), (969, 743439), (2907, 247813)]