278839041

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{2963}}^1$

素因数の和:3125

約数の個数: 32

約数和(自身を含む): 424919040

約数和(自身を除く): 146079999

約数列:

[1, 3, 13, 19, 39, 57, 127, 247, 381, 741, 1651, 2413, 2963, 4953, 7239, 8889, 31369, 38519, 56297, 94107, 115557, 168891, 376301, 731861, 1128903, 2195583, 4891913, 7149719, 14675739, 21449157, 92946347, 278839041]

約数ペア:

[(1, 278839041), (3, 92946347), (13, 21449157), (19, 14675739), (39, 7149719), (57, 4891913), (127, 2195583), (247, 1128903), (381, 731861), (741, 376301), (1651, 168891), (2413, 115557), (2963, 94107), (4953, 56297), (7239, 38519), (8889, 31369)]