668132045

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{21187}}^1$

素因数の和:21269

約数の個数: 32

約数和(自身を含む): 988547328

約数和(自身を除く): 320415283

約数列:

[1, 5, 7, 17, 35, 53, 85, 119, 265, 371, 595, 901, 1855, 4505, 6307, 21187, 31535, 105935, 148309, 360179, 741545, 1122911, 1800895, 2521253, 5614555, 7860377, 12606265, 19089487, 39301885, 95447435, 133626409, 668132045]

約数ペア:

[(1, 668132045), (5, 133626409), (7, 95447435), (17, 39301885), (35, 19089487), (53, 12606265), (85, 7860377), (119, 5614555), (265, 2521253), (371, 1800895), (595, 1122911), (901, 741545), (1855, 360179), (4505, 148309), (6307, 105935), (21187, 31535)]