1639630720

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{599}}^1$

素因数の和:685

約数の個数: 256

約数和(自身を含む): 4935168000

約数和(自身を除く): 3295537280

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 47, 52, 56, 64, 65, 70, 80, 91, 94, 104, 112, 128, 130, 140, 160, 182, 188, 208, 224, 235, 260, 280, 320, 329, 364, 376, 416, 448, 455, 470, 520, 560, 599, 611, 640, 658, 728, 752, 832, 896, 910, 940, 1040, 1120, 1198, 1222, 1316, 1456, 1504, 1645, 1664, 1820, 1880, 2080, 2240, 2396, 2444, 2632, 2912, 2995, 3008, 3055, 3290, 3640, 3760, 4160, 4193, 4277, 4480, 4792, 4888, 5264, 5824, 5990, 6016, 6110, 6580, 7280, 7520, 7787, 8320, 8386, 8554, 9584, 9776, 10528, 11648, 11980, 12220, 13160, 14560, 15040, 15574, 16772, 17108, 19168, 19552, 20965, 21056, 21385, 23960, 24440, 26320, 28153, 29120, 30080, 31148, 33544, 34216, 38336, 38935, 39104, 41930, 42112, 42770, 47920, 48880, 52640, 54509, 56306, 58240, 62296, 67088, 68432, 76672, 77870, 78208, 83860, 85540, 95840, 97760, 105280, 109018, 112612, 124592, 134176, 136864, 140765, 155740, 167720, 171080, 191680, 195520, 197071, 210560, 218036, 225224, 249184, 268352, 272545, 273728, 281530, 311480, 335440, 342160, 365989, 383360, 391040, 394142, 436072, 450448, 498368, 536704, 545090, 547456, 563060, 622960, 670880, 684320, 731978, 788284, 872144, 900896, 985355, 996736, 1090180, 1126120, 1245920, 1341760, 1368640, 1463956, 1576568, 1744288, 1801792, 1829945, 1970710, 2180360, 2252240, 2491840, 2561923, 2683520, 2737280, 2927912, 3153136, 3488576, 3603584, 3659890, 3941420, 4360720, 4504480, 4983680, 5123846, 5855824, 6306272, 6977152, 7319780, 7882840, 8721440, 9008960, 10247692, 11711648, 12612544, 12809615, 14639560, 15765680, 17442880, 18017920, 20495384, 23423296, 25225088, 25619230, 29279120, 31531360, 34885760, 40990768, 46846592, 51238460, 58558240, 63062720, 81981536, 102476920, 117116480, 126125440, 163963072, 204953840, 234232960, 327926144, 409907680, 819815360, 1639630720]

約数ペア:

[(1, 1639630720), (2, 819815360), (4, 409907680), (5, 327926144), (7, 234232960), (8, 204953840), (10, 163963072), (13, 126125440), (14, 117116480), (16, 102476920), (20, 81981536), (26, 63062720), (28, 58558240), (32, 51238460), (35, 46846592), (40, 40990768), (47, 34885760), (52, 31531360), (56, 29279120), (64, 25619230), (65, 25225088), (70, 23423296), (80, 20495384), (91, 18017920), (94, 17442880), (104, 15765680), (112, 14639560), (128, 12809615), (130, 12612544), (140, 11711648), (160, 10247692), (182, 9008960), (188, 8721440), (208, 7882840), (224, 7319780), (235, 6977152), (260, 6306272), (280, 5855824), (320, 5123846), (329, 4983680), (364, 4504480), (376, 4360720), (416, 3941420), (448, 3659890), (455, 3603584), (470, 3488576), (520, 3153136), (560, 2927912), (599, 2737280), (611, 2683520), (640, 2561923), (658, 2491840), (728, 2252240), (752, 2180360), (832, 1970710), (896, 1829945), (910, 1801792), (940, 1744288), (1040, 1576568), (1120, 1463956), (1198, 1368640), (1222, 1341760), (1316, 1245920), (1456, 1126120), (1504, 1090180), (1645, 996736), (1664, 985355), (1820, 900896), (1880, 872144), (2080, 788284), (2240, 731978), (2396, 684320), (2444, 670880), (2632, 622960), (2912, 563060), (2995, 547456), (3008, 545090), (3055, 536704), (3290, 498368), (3640, 450448), (3760, 436072), (4160, 394142), (4193, 391040), (4277, 383360), (4480, 365989), (4792, 342160), (4888, 335440), (5264, 311480), (5824, 281530), (5990, 273728), (6016, 272545), (6110, 268352), (6580, 249184), (7280, 225224), (7520, 218036), (7787, 210560), (8320, 197071), (8386, 195520), (8554, 191680), (9584, 171080), (9776, 167720), (10528, 155740), (11648, 140765), (11980, 136864), (12220, 134176), (13160, 124592), (14560, 112612), (15040, 109018), (15574, 105280), (16772, 97760), (17108, 95840), (19168, 85540), (19552, 83860), (20965, 78208), (21056, 77870), (21385, 76672), (23960, 68432), (24440, 67088), (26320, 62296), (28153, 58240), (29120, 56306), (30080, 54509), (31148, 52640), (33544, 48880), (34216, 47920), (38336, 42770), (38935, 42112), (39104, 41930)]