12820320

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{307}}^1$

素因数の和:357

約数の個数: 144

約数和(自身を含む): 45405360

約数和(自身を除く): 32585040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 29, 30, 32, 36, 40, 45, 48, 58, 60, 72, 80, 87, 90, 96, 116, 120, 144, 145, 160, 174, 180, 232, 240, 261, 288, 290, 307, 348, 360, 435, 464, 480, 522, 580, 614, 696, 720, 870, 921, 928, 1044, 1160, 1228, 1305, 1392, 1440, 1535, 1740, 1842, 2088, 2320, 2456, 2610, 2763, 2784, 3070, 3480, 3684, 4176, 4605, 4640, 4912, 5220, 5526, 6140, 6960, 7368, 8352, 8903, 9210, 9824, 10440, 11052, 12280, 13815, 13920, 14736, 17806, 18420, 20880, 22104, 24560, 26709, 27630, 29472, 35612, 36840, 41760, 44208, 44515, 49120, 53418, 55260, 71224, 73680, 80127, 88416, 89030, 106836, 110520, 133545, 142448, 147360, 160254, 178060, 213672, 221040, 267090, 284896, 320508, 356120, 400635, 427344, 442080, 534180, 641016, 712240, 801270, 854688, 1068360, 1282032, 1424480, 1602540, 2136720, 2564064, 3205080, 4273440, 6410160, 12820320]

約数ペア:

[(1, 12820320), (2, 6410160), (3, 4273440), (4, 3205080), (5, 2564064), (6, 2136720), (8, 1602540), (9, 1424480), (10, 1282032), (12, 1068360), (15, 854688), (16, 801270), (18, 712240), (20, 641016), (24, 534180), (29, 442080), (30, 427344), (32, 400635), (36, 356120), (40, 320508), (45, 284896), (48, 267090), (58, 221040), (60, 213672), (72, 178060), (80, 160254), (87, 147360), (90, 142448), (96, 133545), (116, 110520), (120, 106836), (144, 89030), (145, 88416), (160, 80127), (174, 73680), (180, 71224), (232, 55260), (240, 53418), (261, 49120), (288, 44515), (290, 44208), (307, 41760), (348, 36840), (360, 35612), (435, 29472), (464, 27630), (480, 26709), (522, 24560), (580, 22104), (614, 20880), (696, 18420), (720, 17806), (870, 14736), (921, 13920), (928, 13815), (1044, 12280), (1160, 11052), (1228, 10440), (1305, 9824), (1392, 9210), (1440, 8903), (1535, 8352), (1740, 7368), (1842, 6960), (2088, 6140), (2320, 5526), (2456, 5220), (2610, 4912), (2763, 4640), (2784, 4605), (3070, 4176), (3480, 3684)]