640811520

素因数分解:

$2^9\times 3^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{127}}^1$

素因数の和:232

約数の個数: 320

約数和(自身を含む): 2325565440

約数和(自身を除く): 1684753920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 73, 80, 90, 96, 108, 120, 127, 128, 135, 144, 146, 160, 180, 192, 216, 219, 240, 254, 256, 270, 288, 292, 320, 360, 365, 381, 384, 432, 438, 480, 508, 512, 540, 576, 584, 635, 640, 657, 720, 730, 762, 768, 864, 876, 960, 1016, 1080, 1095, 1143, 1152, 1168, 1270, 1280, 1314, 1440, 1460, 1524, 1536, 1728, 1752, 1905, 1920, 1971, 2032, 2160, 2190, 2286, 2304, 2336, 2540, 2560, 2628, 2880, 2920, 3048, 3285, 3429, 3456, 3504, 3810, 3840, 3942, 4064, 4320, 4380, 4572, 4608, 4672, 5080, 5256, 5715, 5760, 5840, 6096, 6570, 6858, 6912, 7008, 7620, 7680, 7884, 8128, 8640, 8760, 9144, 9271, 9344, 9855, 10160, 10512, 11430, 11520, 11680, 12192, 13140, 13716, 13824, 14016, 15240, 15768, 16256, 17145, 17280, 17520, 18288, 18542, 18688, 19710, 20320, 21024, 22860, 23040, 23360, 24384, 26280, 27432, 27813, 28032, 30480, 31536, 32512, 34290, 34560, 35040, 36576, 37084, 37376, 39420, 40640, 42048, 45720, 46355, 46720, 48768, 52560, 54864, 55626, 56064, 60960, 63072, 65024, 68580, 69120, 70080, 73152, 74168, 78840, 81280, 83439, 84096, 91440, 92710, 93440, 97536, 105120, 109728, 111252, 112128, 121920, 126144, 137160, 139065, 140160, 146304, 148336, 157680, 162560, 166878, 168192, 182880, 185420, 186880, 195072, 210240, 219456, 222504, 243840, 250317, 252288, 274320, 278130, 280320, 292608, 296672, 315360, 325120, 333756, 336384, 365760, 370840, 417195, 420480, 438912, 445008, 487680, 500634, 504576, 548640, 556260, 560640, 585216, 593344, 630720, 667512, 731520, 741680, 834390, 840960, 877824, 890016, 975360, 1001268, 1009152, 1097280, 1112520, 1186688, 1251585, 1261440, 1335024, 1463040, 1483360, 1668780, 1681920, 1755648, 1780032, 2002536, 2194560, 2225040, 2373376, 2503170, 2522880, 2670048, 2926080, 2966720, 3337560, 3560064, 4005072, 4389120, 4450080, 4746752, 5006340, 5045760, 5340096, 5933440, 6675120, 7120128, 8010144, 8778240, 8900160, 10012680, 10680192, 11866880, 13350240, 14240256, 16020288, 17800320, 20025360, 21360384, 23733760, 26700480, 32040576, 35600640, 40050720, 42720768, 53400960, 64081152, 71201280, 80101440, 106801920, 128162304, 160202880, 213603840, 320405760, 640811520]

約数ペア:

[(1, 640811520), (2, 320405760), (3, 213603840), (4, 160202880), (5, 128162304), (6, 106801920), (8, 80101440), (9, 71201280), (10, 64081152), (12, 53400960), (15, 42720768), (16, 40050720), (18, 35600640), (20, 32040576), (24, 26700480), (27, 23733760), (30, 21360384), (32, 20025360), (36, 17800320), (40, 16020288), (45, 14240256), (48, 13350240), (54, 11866880), (60, 10680192), (64, 10012680), (72, 8900160), (73, 8778240), (80, 8010144), (90, 7120128), (96, 6675120), (108, 5933440), (120, 5340096), (127, 5045760), (128, 5006340), (135, 4746752), (144, 4450080), (146, 4389120), (160, 4005072), (180, 3560064), (192, 3337560), (216, 2966720), (219, 2926080), (240, 2670048), (254, 2522880), (256, 2503170), (270, 2373376), (288, 2225040), (292, 2194560), (320, 2002536), (360, 1780032), (365, 1755648), (381, 1681920), (384, 1668780), (432, 1483360), (438, 1463040), (480, 1335024), (508, 1261440), (512, 1251585), (540, 1186688), (576, 1112520), (584, 1097280), (635, 1009152), (640, 1001268), (657, 975360), (720, 890016), (730, 877824), (762, 840960), (768, 834390), (864, 741680), (876, 731520), (960, 667512), (1016, 630720), (1080, 593344), (1095, 585216), (1143, 560640), (1152, 556260), (1168, 548640), (1270, 504576), (1280, 500634), (1314, 487680), (1440, 445008), (1460, 438912), (1524, 420480), (1536, 417195), (1728, 370840), (1752, 365760), (1905, 336384), (1920, 333756), (1971, 325120), (2032, 315360), (2160, 296672), (2190, 292608), (2286, 280320), (2304, 278130), (2336, 274320), (2540, 252288), (2560, 250317), (2628, 243840), (2880, 222504), (2920, 219456), (3048, 210240), (3285, 195072), (3429, 186880), (3456, 185420), (3504, 182880), (3810, 168192), (3840, 166878), (3942, 162560), (4064, 157680), (4320, 148336), (4380, 146304), (4572, 140160), (4608, 139065), (4672, 137160), (5080, 126144), (5256, 121920), (5715, 112128), (5760, 111252), (5840, 109728), (6096, 105120), (6570, 97536), (6858, 93440), (6912, 92710), (7008, 91440), (7620, 84096), (7680, 83439), (7884, 81280), (8128, 78840), (8640, 74168), (8760, 73152), (9144, 70080), (9271, 69120), (9344, 68580), (9855, 65024), (10160, 63072), (10512, 60960), (11430, 56064), (11520, 55626), (11680, 54864), (12192, 52560), (13140, 48768), (13716, 46720), (13824, 46355), (14016, 45720), (15240, 42048), (15768, 40640), (16256, 39420), (17145, 37376), (17280, 37084), (17520, 36576), (18288, 35040), (18542, 34560), (18688, 34290), (19710, 32512), (20320, 31536), (21024, 30480), (22860, 28032), (23040, 27813), (23360, 27432), (24384, 26280)]