128495248

素因数分解:

$2^4\times 7^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{311}}^1$

素因数の和:381

約数の個数: 120

約数和(自身を含む): 317551104

約数和(自身を除く): 189055856

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 31, 34, 49, 56, 62, 68, 98, 112, 119, 124, 136, 196, 217, 238, 248, 272, 311, 392, 434, 476, 496, 527, 622, 784, 833, 868, 952, 1054, 1244, 1519, 1666, 1736, 1904, 2108, 2177, 2488, 3038, 3332, 3472, 3689, 4216, 4354, 4976, 5287, 6076, 6664, 7378, 8432, 8708, 9641, 10574, 12152, 13328, 14756, 15239, 17416, 19282, 21148, 24304, 25823, 29512, 30478, 34832, 37009, 38564, 42296, 51646, 59024, 60956, 67487, 74018, 77128, 84592, 103292, 121912, 134974, 148036, 154256, 163897, 206584, 243824, 259063, 269948, 296072, 327794, 413168, 472409, 518126, 539896, 592144, 655588, 944818, 1036252, 1079792, 1147279, 1311176, 1889636, 2072504, 2294558, 2622352, 3779272, 4145008, 4589116, 7558544, 8030953, 9178232, 16061906, 18356464, 32123812, 64247624, 128495248]

約数ペア:

[(1, 128495248), (2, 64247624), (4, 32123812), (7, 18356464), (8, 16061906), (14, 9178232), (16, 8030953), (17, 7558544), (28, 4589116), (31, 4145008), (34, 3779272), (49, 2622352), (56, 2294558), (62, 2072504), (68, 1889636), (98, 1311176), (112, 1147279), (119, 1079792), (124, 1036252), (136, 944818), (196, 655588), (217, 592144), (238, 539896), (248, 518126), (272, 472409), (311, 413168), (392, 327794), (434, 296072), (476, 269948), (496, 259063), (527, 243824), (622, 206584), (784, 163897), (833, 154256), (868, 148036), (952, 134974), (1054, 121912), (1244, 103292), (1519, 84592), (1666, 77128), (1736, 74018), (1904, 67487), (2108, 60956), (2177, 59024), (2488, 51646), (3038, 42296), (3332, 38564), (3472, 37009), (3689, 34832), (4216, 30478), (4354, 29512), (4976, 25823), (5287, 24304), (6076, 21148), (6664, 19282), (7378, 17416), (8432, 15239), (8708, 14756), (9641, 13328), (10574, 12152)]