1557942815

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{128173}}^1$

素因数の和:128219

約数の個数: 32

約数和(自身を含む): 2325589056

約数和(自身を除く): 767646241

約数列:

[1, 5, 11, 13, 17, 55, 65, 85, 143, 187, 221, 715, 935, 1105, 2431, 12155, 128173, 640865, 1409903, 1666249, 2178941, 7049515, 8331245, 10894705, 18328739, 23968351, 28326233, 91643695, 119841755, 141631165, 311588563, 1557942815]

約数ペア:

[(1, 1557942815), (5, 311588563), (11, 141631165), (13, 119841755), (17, 91643695), (55, 28326233), (65, 23968351), (85, 18328739), (143, 10894705), (187, 8331245), (221, 7049515), (715, 2178941), (935, 1666249), (1105, 1409903), (2431, 640865), (12155, 128173)]