720897411

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{13327}}^1$

素因数の和:13435

約数の個数: 32

約数和(自身を含む): 1104624640

約数和(自身を除く): 383727229

約数列:

[1, 3, 13, 19, 39, 57, 73, 219, 247, 741, 949, 1387, 2847, 4161, 13327, 18031, 39981, 54093, 173251, 253213, 519753, 759639, 972871, 2918613, 3291769, 9875307, 12647323, 18484549, 37941969, 55453647, 240299137, 720897411]

約数ペア:

[(1, 720897411), (3, 240299137), (13, 55453647), (19, 37941969), (39, 18484549), (57, 12647323), (73, 9875307), (219, 3291769), (247, 2918613), (741, 972871), (949, 759639), (1387, 519753), (2847, 253213), (4161, 173251), (13327, 54093), (18031, 39981)]