2783707520

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{1987}}^1$

素因数の和:2216

約数の個数: 128

約数和(自身を含む): 7299936000

約数和(自身を除く): 4516228480

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 199, 220, 320, 352, 398, 440, 640, 704, 796, 880, 995, 1408, 1592, 1760, 1987, 1990, 2189, 3184, 3520, 3974, 3980, 4378, 6368, 7040, 7948, 7960, 8756, 9935, 10945, 12736, 15896, 15920, 17512, 19870, 21857, 21890, 25472, 31792, 31840, 35024, 39740, 43714, 43780, 63584, 63680, 70048, 79480, 87428, 87560, 109285, 127168, 127360, 140096, 158960, 174856, 175120, 218570, 254336, 280192, 317920, 349712, 350240, 395413, 437140, 635840, 699424, 700480, 790826, 874280, 1271680, 1398848, 1400960, 1581652, 1748560, 1977065, 2797696, 3163304, 3497120, 3954130, 4349543, 6326608, 6994240, 7908260, 8699086, 12653216, 13988480, 15816520, 17398172, 21747715, 25306432, 31633040, 34796344, 43495430, 50612864, 63266080, 69592688, 86990860, 126532160, 139185376, 173981720, 253064320, 278370752, 347963440, 556741504, 695926880, 1391853760, 2783707520]

約数ペア:

[(1, 2783707520), (2, 1391853760), (4, 695926880), (5, 556741504), (8, 347963440), (10, 278370752), (11, 253064320), (16, 173981720), (20, 139185376), (22, 126532160), (32, 86990860), (40, 69592688), (44, 63266080), (55, 50612864), (64, 43495430), (80, 34796344), (88, 31633040), (110, 25306432), (128, 21747715), (160, 17398172), (176, 15816520), (199, 13988480), (220, 12653216), (320, 8699086), (352, 7908260), (398, 6994240), (440, 6326608), (640, 4349543), (704, 3954130), (796, 3497120), (880, 3163304), (995, 2797696), (1408, 1977065), (1592, 1748560), (1760, 1581652), (1987, 1400960), (1990, 1398848), (2189, 1271680), (3184, 874280), (3520, 790826), (3974, 700480), (3980, 699424), (4378, 635840), (6368, 437140), (7040, 395413), (7948, 350240), (7960, 349712), (8756, 317920), (9935, 280192), (10945, 254336), (12736, 218570), (15896, 175120), (15920, 174856), (17512, 158960), (19870, 140096), (21857, 127360), (21890, 127168), (25472, 109285), (31792, 87560), (31840, 87428), (35024, 79480), (39740, 70048), (43714, 63680), (43780, 63584)]