820707840

素因数分解:

$2^9\times 3^2\times 5^1\times {\mathrm{179}}^1\times {\mathrm{199}}^1$

素因数の和:407

約数の個数: 240

約数和(自身を含む): 2872584000

約数和(自身を除く): 2051876160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 128, 144, 160, 179, 180, 192, 199, 240, 256, 288, 320, 358, 360, 384, 398, 480, 512, 537, 576, 597, 640, 716, 720, 768, 796, 895, 960, 995, 1074, 1152, 1194, 1280, 1432, 1440, 1536, 1592, 1611, 1790, 1791, 1920, 1990, 2148, 2304, 2388, 2560, 2685, 2864, 2880, 2985, 3184, 3222, 3580, 3582, 3840, 3980, 4296, 4608, 4776, 5370, 5728, 5760, 5970, 6368, 6444, 7160, 7164, 7680, 7960, 8055, 8592, 8955, 9552, 10740, 11456, 11520, 11940, 12736, 12888, 14320, 14328, 15920, 16110, 17184, 17910, 19104, 21480, 22912, 23040, 23880, 25472, 25776, 28640, 28656, 31840, 32220, 34368, 35621, 35820, 38208, 42960, 45824, 47760, 50944, 51552, 57280, 57312, 63680, 64440, 68736, 71242, 71640, 76416, 85920, 91648, 95520, 101888, 103104, 106863, 114560, 114624, 127360, 128880, 137472, 142484, 143280, 152832, 171840, 178105, 191040, 206208, 213726, 229120, 229248, 254720, 257760, 274944, 284968, 286560, 305664, 320589, 343680, 356210, 382080, 412416, 427452, 458240, 458496, 509440, 515520, 534315, 569936, 573120, 641178, 687360, 712420, 764160, 824832, 854904, 916992, 1031040, 1068630, 1139872, 1146240, 1282356, 1374720, 1424840, 1528320, 1602945, 1709808, 2062080, 2137260, 2279744, 2292480, 2564712, 2849680, 3205890, 3419616, 4124160, 4274520, 4559488, 4584960, 5129424, 5699360, 6411780, 6839232, 8549040, 9118976, 10258848, 11398720, 12823560, 13678464, 17098080, 18237952, 20517696, 22797440, 25647120, 27356928, 34196160, 41035392, 45594880, 51294240, 54713856, 68392320, 82070784, 91189760, 102588480, 136784640, 164141568, 205176960, 273569280, 410353920, 820707840]

約数ペア:

[(1, 820707840), (2, 410353920), (3, 273569280), (4, 205176960), (5, 164141568), (6, 136784640), (8, 102588480), (9, 91189760), (10, 82070784), (12, 68392320), (15, 54713856), (16, 51294240), (18, 45594880), (20, 41035392), (24, 34196160), (30, 27356928), (32, 25647120), (36, 22797440), (40, 20517696), (45, 18237952), (48, 17098080), (60, 13678464), (64, 12823560), (72, 11398720), (80, 10258848), (90, 9118976), (96, 8549040), (120, 6839232), (128, 6411780), (144, 5699360), (160, 5129424), (179, 4584960), (180, 4559488), (192, 4274520), (199, 4124160), (240, 3419616), (256, 3205890), (288, 2849680), (320, 2564712), (358, 2292480), (360, 2279744), (384, 2137260), (398, 2062080), (480, 1709808), (512, 1602945), (537, 1528320), (576, 1424840), (597, 1374720), (640, 1282356), (716, 1146240), (720, 1139872), (768, 1068630), (796, 1031040), (895, 916992), (960, 854904), (995, 824832), (1074, 764160), (1152, 712420), (1194, 687360), (1280, 641178), (1432, 573120), (1440, 569936), (1536, 534315), (1592, 515520), (1611, 509440), (1790, 458496), (1791, 458240), (1920, 427452), (1990, 412416), (2148, 382080), (2304, 356210), (2388, 343680), (2560, 320589), (2685, 305664), (2864, 286560), (2880, 284968), (2985, 274944), (3184, 257760), (3222, 254720), (3580, 229248), (3582, 229120), (3840, 213726), (3980, 206208), (4296, 191040), (4608, 178105), (4776, 171840), (5370, 152832), (5728, 143280), (5760, 142484), (5970, 137472), (6368, 128880), (6444, 127360), (7160, 114624), (7164, 114560), (7680, 106863), (7960, 103104), (8055, 101888), (8592, 95520), (8955, 91648), (9552, 85920), (10740, 76416), (11456, 71640), (11520, 71242), (11940, 68736), (12736, 64440), (12888, 63680), (14320, 57312), (14328, 57280), (15920, 51552), (16110, 50944), (17184, 47760), (17910, 45824), (19104, 42960), (21480, 38208), (22912, 35820), (23040, 35621), (23880, 34368), (25472, 32220), (25776, 31840), (28640, 28656)]