787788279

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{19}}^2\times {\mathrm{839}}^1$

素因数の和:917

約数の個数: 54

約数和(自身を含む): 1277279640

約数和(自身を除く): 489491361

約数列:

[1, 3, 9, 17, 19, 51, 57, 153, 171, 289, 323, 361, 839, 867, 969, 1083, 2517, 2601, 2907, 3249, 5491, 6137, 7551, 14263, 15941, 16473, 18411, 42789, 47823, 49419, 55233, 104329, 128367, 143469, 242471, 270997, 302879, 312987, 727413, 812991, 908637, 938961, 2182239, 2438973, 2725911, 4606949, 5148943, 13820847, 15446829, 41462541, 46340487, 87532031, 262596093, 787788279]

約数ペア:

[(1, 787788279), (3, 262596093), (9, 87532031), (17, 46340487), (19, 41462541), (51, 15446829), (57, 13820847), (153, 5148943), (171, 4606949), (289, 2725911), (323, 2438973), (361, 2182239), (839, 938961), (867, 908637), (969, 812991), (1083, 727413), (2517, 312987), (2601, 302879), (2907, 270997), (3249, 242471), (5491, 143469), (6137, 128367), (7551, 104329), (14263, 55233), (15941, 49419), (16473, 47823), (18411, 42789)]