19079680

素因数分解:

$2^9\times 5^1\times {\mathrm{29}}^1\times {\mathrm{257}}^1$

素因数の和:309

約数の個数: 80

約数和(自身を含む): 47508120

約数和(自身を除く): 28428440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 64, 80, 116, 128, 145, 160, 232, 256, 257, 290, 320, 464, 512, 514, 580, 640, 928, 1028, 1160, 1280, 1285, 1856, 2056, 2320, 2560, 2570, 3712, 4112, 4640, 5140, 7424, 7453, 8224, 9280, 10280, 14848, 14906, 16448, 18560, 20560, 29812, 32896, 37120, 37265, 41120, 59624, 65792, 74240, 74530, 82240, 119248, 131584, 149060, 164480, 238496, 298120, 328960, 476992, 596240, 657920, 953984, 1192480, 1907968, 2384960, 3815936, 4769920, 9539840, 19079680]

約数ペア:

[(1, 19079680), (2, 9539840), (4, 4769920), (5, 3815936), (8, 2384960), (10, 1907968), (16, 1192480), (20, 953984), (29, 657920), (32, 596240), (40, 476992), (58, 328960), (64, 298120), (80, 238496), (116, 164480), (128, 149060), (145, 131584), (160, 119248), (232, 82240), (256, 74530), (257, 74240), (290, 65792), (320, 59624), (464, 41120), (512, 37265), (514, 37120), (580, 32896), (640, 29812), (928, 20560), (1028, 18560), (1160, 16448), (1280, 14906), (1285, 14848), (1856, 10280), (2056, 9280), (2320, 8224), (2560, 7453), (2570, 7424), (3712, 5140), (4112, 4640)]