1280640000

素因数分解:

$2^{10}\times 3^1\times 5^4\times {\mathrm{23}}^1\times {\mathrm{29}}^1$

素因数の和:95

約数の個数: 440

約数和(自身を含む): 4604276160

約数和(自身を除く): 3323636160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 25, 29, 30, 32, 40, 46, 48, 50, 58, 60, 64, 69, 75, 80, 87, 92, 96, 100, 115, 116, 120, 125, 128, 138, 145, 150, 160, 174, 184, 192, 200, 230, 232, 240, 250, 256, 276, 290, 300, 320, 345, 348, 368, 375, 384, 400, 435, 460, 464, 480, 500, 512, 552, 575, 580, 600, 625, 640, 667, 690, 696, 725, 736, 750, 768, 800, 870, 920, 928, 960, 1000, 1024, 1104, 1150, 1160, 1200, 1250, 1280, 1334, 1380, 1392, 1450, 1472, 1500, 1536, 1600, 1725, 1740, 1840, 1856, 1875, 1920, 2000, 2001, 2175, 2208, 2300, 2320, 2400, 2500, 2560, 2668, 2760, 2784, 2875, 2900, 2944, 3000, 3072, 3200, 3335, 3450, 3480, 3625, 3680, 3712, 3750, 3840, 4000, 4002, 4350, 4416, 4600, 4640, 4800, 5000, 5120, 5336, 5520, 5568, 5750, 5800, 5888, 6000, 6400, 6670, 6900, 6960, 7250, 7360, 7424, 7500, 7680, 8000, 8004, 8625, 8700, 8832, 9200, 9280, 9600, 10000, 10005, 10672, 10875, 11040, 11136, 11500, 11600, 11776, 12000, 12800, 13340, 13800, 13920, 14375, 14500, 14720, 14848, 15000, 15360, 16000, 16008, 16675, 17250, 17400, 17664, 18125, 18400, 18560, 19200, 20000, 20010, 21344, 21750, 22080, 22272, 23000, 23200, 23552, 24000, 25600, 26680, 27600, 27840, 28750, 29000, 29440, 29696, 30000, 32000, 32016, 33350, 34500, 34800, 35328, 36250, 36800, 37120, 38400, 40000, 40020, 42688, 43125, 43500, 44160, 44544, 46000, 46400, 48000, 50025, 53360, 54375, 55200, 55680, 57500, 58000, 58880, 60000, 64000, 64032, 66700, 69000, 69600, 70656, 72500, 73600, 74240, 76800, 80000, 80040, 83375, 85376, 86250, 87000, 88320, 89088, 92000, 92800, 96000, 100050, 106720, 108750, 110400, 111360, 115000, 116000, 117760, 120000, 128000, 128064, 133400, 138000, 139200, 145000, 147200, 148480, 160000, 160080, 166750, 170752, 172500, 174000, 176640, 184000, 185600, 192000, 200100, 213440, 217500, 220800, 222720, 230000, 232000, 240000, 250125, 256128, 266800, 276000, 278400, 290000, 294400, 320000, 320160, 333500, 341504, 345000, 348000, 353280, 368000, 371200, 384000, 400200, 416875, 426880, 435000, 441600, 445440, 460000, 464000, 480000, 500250, 512256, 533600, 552000, 556800, 580000, 588800, 640000, 640320, 667000, 683008, 690000, 696000, 736000, 742400, 800400, 833750, 853760, 870000, 883200, 920000, 928000, 960000, 1000500, 1024512, 1067200, 1104000, 1113600, 1160000, 1250625, 1280640, 1334000, 1380000, 1392000, 1472000, 1600800, 1667500, 1707520, 1740000, 1766400, 1840000, 1856000, 1920000, 2001000, 2049024, 2134400, 2208000, 2227200, 2320000, 2501250, 2561280, 2668000, 2760000, 2784000, 2944000, 3201600, 3335000, 3415040, 3480000, 3680000, 3712000, 4002000, 4268800, 4416000, 4640000, 5002500, 5122560, 5336000, 5520000, 5568000, 6403200, 6670000, 6960000, 7360000, 8004000, 8537600, 8832000, 9280000, 10005000, 10245120, 10672000, 11040000, 11136000, 12806400, 13340000, 13920000, 14720000, 16008000, 17075200, 18560000, 20010000, 21344000, 22080000, 25612800, 26680000, 27840000, 32016000, 40020000, 42688000, 44160000, 51225600, 53360000, 55680000, 64032000, 80040000, 85376000, 106720000, 128064000, 160080000, 213440000, 256128000, 320160000, 426880000, 640320000, 1280640000]

約数ペア:

[(1, 1280640000), (2, 640320000), (3, 426880000), (4, 320160000), (5, 256128000), (6, 213440000), (8, 160080000), (10, 128064000), (12, 106720000), (15, 85376000), (16, 80040000), (20, 64032000), (23, 55680000), (24, 53360000), (25, 51225600), (29, 44160000), (30, 42688000), (32, 40020000), (40, 32016000), (46, 27840000), (48, 26680000), (50, 25612800), (58, 22080000), (60, 21344000), (64, 20010000), (69, 18560000), (75, 17075200), (80, 16008000), (87, 14720000), (92, 13920000), (96, 13340000), (100, 12806400), (115, 11136000), (116, 11040000), (120, 10672000), (125, 10245120), (128, 10005000), (138, 9280000), (145, 8832000), (150, 8537600), (160, 8004000), (174, 7360000), (184, 6960000), (192, 6670000), (200, 6403200), (230, 5568000), (232, 5520000), (240, 5336000), (250, 5122560), (256, 5002500), (276, 4640000), (290, 4416000), (300, 4268800), (320, 4002000), (345, 3712000), (348, 3680000), (368, 3480000), (375, 3415040), (384, 3335000), (400, 3201600), (435, 2944000), (460, 2784000), (464, 2760000), (480, 2668000), (500, 2561280), (512, 2501250), (552, 2320000), (575, 2227200), (580, 2208000), (600, 2134400), (625, 2049024), (640, 2001000), (667, 1920000), (690, 1856000), (696, 1840000), (725, 1766400), (736, 1740000), (750, 1707520), (768, 1667500), (800, 1600800), (870, 1472000), (920, 1392000), (928, 1380000), (960, 1334000), (1000, 1280640), (1024, 1250625), (1104, 1160000), (1150, 1113600), (1160, 1104000), (1200, 1067200), (1250, 1024512), (1280, 1000500), (1334, 960000), (1380, 928000), (1392, 920000), (1450, 883200), (1472, 870000), (1500, 853760), (1536, 833750), (1600, 800400), (1725, 742400), (1740, 736000), (1840, 696000), (1856, 690000), (1875, 683008), (1920, 667000), (2000, 640320), (2001, 640000), (2175, 588800), (2208, 580000), (2300, 556800), (2320, 552000), (2400, 533600), (2500, 512256), (2560, 500250), (2668, 480000), (2760, 464000), (2784, 460000), (2875, 445440), (2900, 441600), (2944, 435000), (3000, 426880), (3072, 416875), (3200, 400200), (3335, 384000), (3450, 371200), (3480, 368000), (3625, 353280), (3680, 348000), (3712, 345000), (3750, 341504), (3840, 333500), (4000, 320160), (4002, 320000), (4350, 294400), (4416, 290000), (4600, 278400), (4640, 276000), (4800, 266800), (5000, 256128), (5120, 250125), (5336, 240000), (5520, 232000), (5568, 230000), (5750, 222720), (5800, 220800), (5888, 217500), (6000, 213440), (6400, 200100), (6670, 192000), (6900, 185600), (6960, 184000), (7250, 176640), (7360, 174000), (7424, 172500), (7500, 170752), (7680, 166750), (8000, 160080), (8004, 160000), (8625, 148480), (8700, 147200), (8832, 145000), (9200, 139200), (9280, 138000), (9600, 133400), (10000, 128064), (10005, 128000), (10672, 120000), (10875, 117760), (11040, 116000), (11136, 115000), (11500, 111360), (11600, 110400), (11776, 108750), (12000, 106720), (12800, 100050), (13340, 96000), (13800, 92800), (13920, 92000), (14375, 89088), (14500, 88320), (14720, 87000), (14848, 86250), (15000, 85376), (15360, 83375), (16000, 80040), (16008, 80000), (16675, 76800), (17250, 74240), (17400, 73600), (17664, 72500), (18125, 70656), (18400, 69600), (18560, 69000), (19200, 66700), (20000, 64032), (20010, 64000), (21344, 60000), (21750, 58880), (22080, 58000), (22272, 57500), (23000, 55680), (23200, 55200), (23552, 54375), (24000, 53360), (25600, 50025), (26680, 48000), (27600, 46400), (27840, 46000), (28750, 44544), (29000, 44160), (29440, 43500), (29696, 43125), (30000, 42688), (32000, 40020), (32016, 40000), (33350, 38400), (34500, 37120), (34800, 36800), (35328, 36250)]