261938880

素因数分解:

$2^6\times 3^3\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:165

約数の個数: 448

約数和(自身を含む): 1088501760

約数和(自身を除く): 826562880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 54, 56, 60, 61, 63, 64, 70, 71, 72, 80, 84, 90, 96, 105, 108, 112, 120, 122, 126, 135, 140, 142, 144, 160, 168, 180, 183, 189, 192, 210, 213, 216, 224, 240, 244, 252, 270, 280, 284, 288, 305, 315, 320, 336, 355, 360, 366, 378, 420, 426, 427, 432, 448, 480, 488, 497, 504, 540, 549, 560, 568, 576, 610, 630, 639, 672, 710, 720, 732, 756, 840, 852, 854, 864, 915, 945, 960, 976, 994, 1008, 1065, 1080, 1098, 1120, 1136, 1220, 1260, 1278, 1281, 1344, 1420, 1440, 1464, 1491, 1512, 1647, 1680, 1704, 1708, 1728, 1830, 1890, 1917, 1952, 1988, 2016, 2130, 2135, 2160, 2196, 2240, 2272, 2440, 2485, 2520, 2556, 2562, 2745, 2840, 2880, 2928, 2982, 3024, 3195, 3294, 3360, 3408, 3416, 3660, 3780, 3834, 3843, 3904, 3976, 4032, 4260, 4270, 4320, 4331, 4392, 4473, 4544, 4880, 4970, 5040, 5112, 5124, 5490, 5680, 5856, 5964, 6048, 6390, 6405, 6588, 6720, 6816, 6832, 7320, 7455, 7560, 7668, 7686, 7952, 8235, 8520, 8540, 8640, 8662, 8784, 8946, 9585, 9760, 9940, 10080, 10224, 10248, 10980, 11360, 11529, 11712, 11928, 12096, 12780, 12810, 12993, 13176, 13419, 13632, 13664, 14640, 14910, 15120, 15336, 15372, 15904, 16470, 17040, 17080, 17324, 17568, 17892, 19170, 19215, 19520, 19880, 20160, 20448, 20496, 21655, 21960, 22365, 22720, 23058, 23856, 25560, 25620, 25986, 26352, 26838, 27328, 29280, 29820, 30240, 30317, 30672, 30744, 31808, 32940, 34080, 34160, 34648, 35136, 35784, 38340, 38430, 38979, 39760, 40896, 40992, 43310, 43920, 44730, 46116, 47712, 51120, 51240, 51972, 52704, 53676, 57645, 58560, 59640, 60480, 60634, 61344, 61488, 64965, 65880, 67095, 68160, 68320, 69296, 71568, 76680, 76860, 77958, 79520, 81984, 86620, 87840, 89460, 90951, 92232, 95424, 102240, 102480, 103944, 105408, 107352, 115290, 116937, 119280, 121268, 122688, 122976, 129930, 131760, 134190, 136640, 138592, 143136, 151585, 153360, 153720, 155916, 159040, 173240, 175680, 178920, 181902, 184464, 194895, 204480, 204960, 207888, 214704, 230580, 233874, 238560, 242536, 245952, 259860, 263520, 268380, 272853, 277184, 286272, 303170, 306720, 307440, 311832, 346480, 357840, 363804, 368928, 389790, 409920, 415776, 429408, 454755, 461160, 467748, 477120, 485072, 519720, 527040, 536760, 545706, 584685, 606340, 613440, 614880, 623664, 692960, 715680, 727608, 737856, 779580, 818559, 831552, 858816, 909510, 922320, 935496, 970144, 1039440, 1073520, 1091412, 1169370, 1212680, 1229760, 1247328, 1364265, 1385920, 1431360, 1455216, 1559160, 1637118, 1819020, 1844640, 1870992, 1940288, 2078880, 2147040, 2182824, 2338740, 2425360, 2494656, 2728530, 2910432, 3118320, 3274236, 3638040, 3689280, 3741984, 4092795, 4157760, 4294080, 4365648, 4677480, 4850720, 5457060, 5820864, 6236640, 6548472, 7276080, 7483968, 8185590, 8731296, 9354960, 9701440, 10914120, 12473280, 13096944, 14552160, 16371180, 17462592, 18709920, 21828240, 26193888, 29104320, 32742360, 37419840, 43656480, 52387776, 65484720, 87312960, 130969440, 261938880]

約数ペア:

[(1, 261938880), (2, 130969440), (3, 87312960), (4, 65484720), (5, 52387776), (6, 43656480), (7, 37419840), (8, 32742360), (9, 29104320), (10, 26193888), (12, 21828240), (14, 18709920), (15, 17462592), (16, 16371180), (18, 14552160), (20, 13096944), (21, 12473280), (24, 10914120), (27, 9701440), (28, 9354960), (30, 8731296), (32, 8185590), (35, 7483968), (36, 7276080), (40, 6548472), (42, 6236640), (45, 5820864), (48, 5457060), (54, 4850720), (56, 4677480), (60, 4365648), (61, 4294080), (63, 4157760), (64, 4092795), (70, 3741984), (71, 3689280), (72, 3638040), (80, 3274236), (84, 3118320), (90, 2910432), (96, 2728530), (105, 2494656), (108, 2425360), (112, 2338740), (120, 2182824), (122, 2147040), (126, 2078880), (135, 1940288), (140, 1870992), (142, 1844640), (144, 1819020), (160, 1637118), (168, 1559160), (180, 1455216), (183, 1431360), (189, 1385920), (192, 1364265), (210, 1247328), (213, 1229760), (216, 1212680), (224, 1169370), (240, 1091412), (244, 1073520), (252, 1039440), (270, 970144), (280, 935496), (284, 922320), (288, 909510), (305, 858816), (315, 831552), (320, 818559), (336, 779580), (355, 737856), (360, 727608), (366, 715680), (378, 692960), (420, 623664), (426, 614880), (427, 613440), (432, 606340), (448, 584685), (480, 545706), (488, 536760), (497, 527040), (504, 519720), (540, 485072), (549, 477120), (560, 467748), (568, 461160), (576, 454755), (610, 429408), (630, 415776), (639, 409920), (672, 389790), (710, 368928), (720, 363804), (732, 357840), (756, 346480), (840, 311832), (852, 307440), (854, 306720), (864, 303170), (915, 286272), (945, 277184), (960, 272853), (976, 268380), (994, 263520), (1008, 259860), (1065, 245952), (1080, 242536), (1098, 238560), (1120, 233874), (1136, 230580), (1220, 214704), (1260, 207888), (1278, 204960), (1281, 204480), (1344, 194895), (1420, 184464), (1440, 181902), (1464, 178920), (1491, 175680), (1512, 173240), (1647, 159040), (1680, 155916), (1704, 153720), (1708, 153360), (1728, 151585), (1830, 143136), (1890, 138592), (1917, 136640), (1952, 134190), (1988, 131760), (2016, 129930), (2130, 122976), (2135, 122688), (2160, 121268), (2196, 119280), (2240, 116937), (2272, 115290), (2440, 107352), (2485, 105408), (2520, 103944), (2556, 102480), (2562, 102240), (2745, 95424), (2840, 92232), (2880, 90951), (2928, 89460), (2982, 87840), (3024, 86620), (3195, 81984), (3294, 79520), (3360, 77958), (3408, 76860), (3416, 76680), (3660, 71568), (3780, 69296), (3834, 68320), (3843, 68160), (3904, 67095), (3976, 65880), (4032, 64965), (4260, 61488), (4270, 61344), (4320, 60634), (4331, 60480), (4392, 59640), (4473, 58560), (4544, 57645), (4880, 53676), (4970, 52704), (5040, 51972), (5112, 51240), (5124, 51120), (5490, 47712), (5680, 46116), (5856, 44730), (5964, 43920), (6048, 43310), (6390, 40992), (6405, 40896), (6588, 39760), (6720, 38979), (6816, 38430), (6832, 38340), (7320, 35784), (7455, 35136), (7560, 34648), (7668, 34160), (7686, 34080), (7952, 32940), (8235, 31808), (8520, 30744), (8540, 30672), (8640, 30317), (8662, 30240), (8784, 29820), (8946, 29280), (9585, 27328), (9760, 26838), (9940, 26352), (10080, 25986), (10224, 25620), (10248, 25560), (10980, 23856), (11360, 23058), (11529, 22720), (11712, 22365), (11928, 21960), (12096, 21655), (12780, 20496), (12810, 20448), (12993, 20160), (13176, 19880), (13419, 19520), (13632, 19215), (13664, 19170), (14640, 17892), (14910, 17568), (15120, 17324), (15336, 17080), (15372, 17040), (15904, 16470)]