19745825

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{1217}}^1$

素因数の和:1297

約数の個数: 24

約数和(自身を含む): 27185760

約数和(自身を除く): 7439935

約数列:

[1, 5, 11, 25, 55, 59, 275, 295, 649, 1217, 1475, 3245, 6085, 13387, 16225, 30425, 66935, 71803, 334675, 359015, 789833, 1795075, 3949165, 19745825]

約数ペア:

[(1, 19745825), (5, 3949165), (11, 1795075), (25, 789833), (55, 359015), (59, 334675), (275, 71803), (295, 66935), (649, 30425), (1217, 16225), (1475, 13387), (3245, 6085)]