643115200

素因数分解:

$2^6\times 5^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{631}}^1$

素因数の和:680

約数の個数: 252

約数和(自身を含む): 1985570832

約数和(自身を除く): 1342455632

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 25, 26, 28, 32, 35, 40, 49, 50, 52, 56, 64, 65, 70, 80, 91, 98, 100, 104, 112, 130, 140, 160, 175, 182, 196, 200, 208, 224, 245, 260, 280, 320, 325, 350, 364, 392, 400, 416, 448, 455, 490, 520, 560, 631, 637, 650, 700, 728, 784, 800, 832, 910, 980, 1040, 1120, 1225, 1262, 1274, 1300, 1400, 1456, 1568, 1600, 1820, 1960, 2080, 2240, 2275, 2450, 2524, 2548, 2600, 2800, 2912, 3136, 3155, 3185, 3640, 3920, 4160, 4417, 4550, 4900, 5048, 5096, 5200, 5600, 5824, 6310, 6370, 7280, 7840, 8203, 8834, 9100, 9800, 10096, 10192, 10400, 11200, 12620, 12740, 14560, 15680, 15775, 15925, 16406, 17668, 18200, 19600, 20192, 20384, 20800, 22085, 25240, 25480, 29120, 30919, 31550, 31850, 32812, 35336, 36400, 39200, 40384, 40768, 41015, 44170, 50480, 50960, 57421, 61838, 63100, 63700, 65624, 70672, 72800, 78400, 82030, 88340, 100960, 101920, 110425, 114842, 123676, 126200, 127400, 131248, 141344, 145600, 154595, 164060, 176680, 201920, 203840, 205075, 220850, 229684, 247352, 252400, 254800, 262496, 282688, 287105, 309190, 328120, 353360, 401947, 410150, 441700, 459368, 494704, 504800, 509600, 524992, 574210, 618380, 656240, 706720, 772975, 803894, 820300, 883400, 918736, 989408, 1009600, 1019200, 1148420, 1236760, 1312480, 1413440, 1435525, 1545950, 1607788, 1640600, 1766800, 1837472, 1978816, 2009735, 2296840, 2473520, 2624960, 2871050, 3091900, 3215576, 3281200, 3533600, 3674944, 4019470, 4593680, 4947040, 5742100, 6183800, 6431152, 6562400, 7067200, 8038940, 9187360, 9894080, 10048675, 11484200, 12367600, 12862304, 13124800, 16077880, 18374720, 20097350, 22968400, 24735200, 25724608, 32155760, 40194700, 45936800, 49470400, 64311520, 80389400, 91873600, 128623040, 160778800, 321557600, 643115200]

約数ペア:

[(1, 643115200), (2, 321557600), (4, 160778800), (5, 128623040), (7, 91873600), (8, 80389400), (10, 64311520), (13, 49470400), (14, 45936800), (16, 40194700), (20, 32155760), (25, 25724608), (26, 24735200), (28, 22968400), (32, 20097350), (35, 18374720), (40, 16077880), (49, 13124800), (50, 12862304), (52, 12367600), (56, 11484200), (64, 10048675), (65, 9894080), (70, 9187360), (80, 8038940), (91, 7067200), (98, 6562400), (100, 6431152), (104, 6183800), (112, 5742100), (130, 4947040), (140, 4593680), (160, 4019470), (175, 3674944), (182, 3533600), (196, 3281200), (200, 3215576), (208, 3091900), (224, 2871050), (245, 2624960), (260, 2473520), (280, 2296840), (320, 2009735), (325, 1978816), (350, 1837472), (364, 1766800), (392, 1640600), (400, 1607788), (416, 1545950), (448, 1435525), (455, 1413440), (490, 1312480), (520, 1236760), (560, 1148420), (631, 1019200), (637, 1009600), (650, 989408), (700, 918736), (728, 883400), (784, 820300), (800, 803894), (832, 772975), (910, 706720), (980, 656240), (1040, 618380), (1120, 574210), (1225, 524992), (1262, 509600), (1274, 504800), (1300, 494704), (1400, 459368), (1456, 441700), (1568, 410150), (1600, 401947), (1820, 353360), (1960, 328120), (2080, 309190), (2240, 287105), (2275, 282688), (2450, 262496), (2524, 254800), (2548, 252400), (2600, 247352), (2800, 229684), (2912, 220850), (3136, 205075), (3155, 203840), (3185, 201920), (3640, 176680), (3920, 164060), (4160, 154595), (4417, 145600), (4550, 141344), (4900, 131248), (5048, 127400), (5096, 126200), (5200, 123676), (5600, 114842), (5824, 110425), (6310, 101920), (6370, 100960), (7280, 88340), (7840, 82030), (8203, 78400), (8834, 72800), (9100, 70672), (9800, 65624), (10096, 63700), (10192, 63100), (10400, 61838), (11200, 57421), (12620, 50960), (12740, 50480), (14560, 44170), (15680, 41015), (15775, 40768), (15925, 40384), (16406, 39200), (17668, 36400), (18200, 35336), (19600, 32812), (20192, 31850), (20384, 31550), (20800, 30919), (22085, 29120), (25240, 25480)]