128536785

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{219721}}^1$

素因数の和:219745

約数の個数: 24

約数和(自身を含む): 239936424

約数和(自身を除く): 111399639

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 585, 219721, 659163, 1098605, 1977489, 2856373, 3295815, 8569119, 9887445, 14281865, 25707357, 42845595, 128536785]

約数ペア:

[(1, 128536785), (3, 42845595), (5, 25707357), (9, 14281865), (13, 9887445), (15, 8569119), (39, 3295815), (45, 2856373), (65, 1977489), (117, 1098605), (195, 659163), (585, 219721)]