66728285

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{761}}^1$

素因数の和:869

約数の個数: 32

約数和(自身を含む): 92171520

約数和(自身を除く): 25443235

約数列:

[1, 5, 13, 19, 65, 71, 95, 247, 355, 761, 923, 1235, 1349, 3805, 4615, 6745, 9893, 14459, 17537, 49465, 54031, 72295, 87685, 187967, 270155, 702403, 939835, 1026589, 3512015, 5132945, 13345657, 66728285]

約数ペア:

[(1, 66728285), (5, 13345657), (13, 5132945), (19, 3512015), (65, 1026589), (71, 939835), (95, 702403), (247, 270155), (355, 187967), (761, 87685), (923, 72295), (1235, 54031), (1349, 49465), (3805, 17537), (4615, 14459), (6745, 9893)]