81741268

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{153649}}^1$

素因数の和:153679

約数の個数: 24

約数和(自身を含む): 172088000

約数和(自身を除く): 90346732

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 153649, 307298, 614596, 1075543, 2151086, 2919331, 4302172, 5838662, 11677324, 20435317, 40870634, 81741268]

約数ペア:

[(1, 81741268), (2, 40870634), (4, 20435317), (7, 11677324), (14, 5838662), (19, 4302172), (28, 2919331), (38, 2151086), (76, 1075543), (133, 614596), (266, 307298), (532, 153649)]