20118181215

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{983}}^1\times {\mathrm{1747}}^1$

素因数の和:2820

約数の個数: 64

約数和(自身を含む): 35666583552

約数和(自身を除く): 15548402337

約数列:

[1, 3, 5, 11, 15, 33, 55, 71, 165, 213, 355, 781, 983, 1065, 1747, 2343, 2949, 3905, 4915, 5241, 8735, 10813, 11715, 14745, 19217, 26205, 32439, 54065, 57651, 69793, 96085, 124037, 162195, 209379, 288255, 348965, 372111, 620185, 767723, 1046895, 1364407, 1717301, 1860555, 2303169, 3838615, 4093221, 5151903, 6822035, 8586505, 11515845, 18890311, 20466105, 25759515, 56670933, 94451555, 121928371, 283354665, 365785113, 609641855, 1341212081, 1828925565, 4023636243, 6706060405, 20118181215]

約数ペア:

[(1, 20118181215), (3, 6706060405), (5, 4023636243), (11, 1828925565), (15, 1341212081), (33, 609641855), (55, 365785113), (71, 283354665), (165, 121928371), (213, 94451555), (355, 56670933), (781, 25759515), (983, 20466105), (1065, 18890311), (1747, 11515845), (2343, 8586505), (2949, 6822035), (3905, 5151903), (4915, 4093221), (5241, 3838615), (8735, 2303169), (10813, 1860555), (11715, 1717301), (14745, 1364407), (19217, 1046895), (26205, 767723), (32439, 620185), (54065, 372111), (57651, 348965), (69793, 288255), (96085, 209379), (124037, 162195)]