20764800

素因数分解:

$2^7\times 3^2\times 5^2\times 7^1\times {\mathrm{103}}^1$

素因数の和:140

約数の個数: 288

約数和(自身を含む): 85500480

約数和(自身を除く): 64735680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 25, 28, 30, 32, 35, 36, 40, 42, 45, 48, 50, 56, 60, 63, 64, 70, 72, 75, 80, 84, 90, 96, 100, 103, 105, 112, 120, 126, 128, 140, 144, 150, 160, 168, 175, 180, 192, 200, 206, 210, 224, 225, 240, 252, 280, 288, 300, 309, 315, 320, 336, 350, 360, 384, 400, 412, 420, 448, 450, 480, 504, 515, 525, 560, 576, 600, 618, 630, 640, 672, 700, 720, 721, 800, 824, 840, 896, 900, 927, 960, 1008, 1030, 1050, 1120, 1152, 1200, 1236, 1260, 1344, 1400, 1440, 1442, 1545, 1575, 1600, 1648, 1680, 1800, 1854, 1920, 2016, 2060, 2100, 2163, 2240, 2400, 2472, 2520, 2575, 2688, 2800, 2880, 2884, 3090, 3150, 3200, 3296, 3360, 3600, 3605, 3708, 4032, 4120, 4200, 4326, 4480, 4635, 4800, 4944, 5040, 5150, 5600, 5760, 5768, 6180, 6300, 6489, 6592, 6720, 7200, 7210, 7416, 7725, 8064, 8240, 8400, 8652, 9270, 9600, 9888, 10080, 10300, 10815, 11200, 11536, 12360, 12600, 12978, 13184, 13440, 14400, 14420, 14832, 15450, 16480, 16800, 17304, 18025, 18540, 19776, 20160, 20600, 21630, 22400, 23072, 23175, 24720, 25200, 25956, 28800, 28840, 29664, 30900, 32445, 32960, 33600, 34608, 36050, 37080, 39552, 40320, 41200, 43260, 46144, 46350, 49440, 50400, 51912, 54075, 57680, 59328, 61800, 64890, 65920, 67200, 69216, 72100, 74160, 82400, 86520, 92288, 92700, 98880, 100800, 103824, 108150, 115360, 118656, 123600, 129780, 138432, 144200, 148320, 162225, 164800, 173040, 185400, 197760, 201600, 207648, 216300, 230720, 247200, 259560, 276864, 288400, 296640, 324450, 329600, 346080, 370800, 415296, 432600, 461440, 494400, 519120, 576800, 593280, 648900, 692160, 741600, 830592, 865200, 988800, 1038240, 1153600, 1297800, 1384320, 1483200, 1730400, 2076480, 2307200, 2595600, 2966400, 3460800, 4152960, 5191200, 6921600, 10382400, 20764800]

約数ペア:

[(1, 20764800), (2, 10382400), (3, 6921600), (4, 5191200), (5, 4152960), (6, 3460800), (7, 2966400), (8, 2595600), (9, 2307200), (10, 2076480), (12, 1730400), (14, 1483200), (15, 1384320), (16, 1297800), (18, 1153600), (20, 1038240), (21, 988800), (24, 865200), (25, 830592), (28, 741600), (30, 692160), (32, 648900), (35, 593280), (36, 576800), (40, 519120), (42, 494400), (45, 461440), (48, 432600), (50, 415296), (56, 370800), (60, 346080), (63, 329600), (64, 324450), (70, 296640), (72, 288400), (75, 276864), (80, 259560), (84, 247200), (90, 230720), (96, 216300), (100, 207648), (103, 201600), (105, 197760), (112, 185400), (120, 173040), (126, 164800), (128, 162225), (140, 148320), (144, 144200), (150, 138432), (160, 129780), (168, 123600), (175, 118656), (180, 115360), (192, 108150), (200, 103824), (206, 100800), (210, 98880), (224, 92700), (225, 92288), (240, 86520), (252, 82400), (280, 74160), (288, 72100), (300, 69216), (309, 67200), (315, 65920), (320, 64890), (336, 61800), (350, 59328), (360, 57680), (384, 54075), (400, 51912), (412, 50400), (420, 49440), (448, 46350), (450, 46144), (480, 43260), (504, 41200), (515, 40320), (525, 39552), (560, 37080), (576, 36050), (600, 34608), (618, 33600), (630, 32960), (640, 32445), (672, 30900), (700, 29664), (720, 28840), (721, 28800), (800, 25956), (824, 25200), (840, 24720), (896, 23175), (900, 23072), (927, 22400), (960, 21630), (1008, 20600), (1030, 20160), (1050, 19776), (1120, 18540), (1152, 18025), (1200, 17304), (1236, 16800), (1260, 16480), (1344, 15450), (1400, 14832), (1440, 14420), (1442, 14400), (1545, 13440), (1575, 13184), (1600, 12978), (1648, 12600), (1680, 12360), (1800, 11536), (1854, 11200), (1920, 10815), (2016, 10300), (2060, 10080), (2100, 9888), (2163, 9600), (2240, 9270), (2400, 8652), (2472, 8400), (2520, 8240), (2575, 8064), (2688, 7725), (2800, 7416), (2880, 7210), (2884, 7200), (3090, 6720), (3150, 6592), (3200, 6489), (3296, 6300), (3360, 6180), (3600, 5768), (3605, 5760), (3708, 5600), (4032, 5150), (4120, 5040), (4200, 4944), (4326, 4800), (4480, 4635)]