1288787731

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{389}}^1\times {\mathrm{2531}}^1$

素因数の和:2955

約数の個数: 32

約数和(自身を含む): 1706365440

約数和(自身を除く): 417577709

約数列:

[1, 7, 11, 17, 77, 119, 187, 389, 1309, 2531, 2723, 4279, 6613, 17717, 27841, 29953, 43027, 46291, 72743, 194887, 301189, 473297, 509201, 984559, 3313079, 6891913, 10830149, 16737503, 75811043, 117162521, 184112533, 1288787731]

約数ペア:

[(1, 1288787731), (7, 184112533), (11, 117162521), (17, 75811043), (77, 16737503), (119, 10830149), (187, 6891913), (389, 3313079), (1309, 984559), (2531, 509201), (2723, 473297), (4279, 301189), (6613, 194887), (17717, 72743), (27841, 46291), (29953, 43027)]