256404960

素因数分解:

$2^5\times 3^3\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1$

素因数の和:231

約数の個数: 384

約数和(自身を含む): 1049932800

約数和(自身を除く): 793527840

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, 70, 72, 80, 84, 90, 96, 105, 108, 112, 120, 122, 126, 135, 139, 140, 144, 160, 168, 180, 183, 189, 210, 216, 224, 240, 244, 252, 270, 278, 280, 288, 305, 315, 336, 360, 366, 378, 417, 420, 427, 432, 480, 488, 504, 540, 549, 556, 560, 610, 630, 672, 695, 720, 732, 756, 834, 840, 854, 864, 915, 945, 973, 976, 1008, 1080, 1098, 1112, 1120, 1220, 1251, 1260, 1281, 1390, 1440, 1464, 1512, 1647, 1668, 1680, 1708, 1830, 1890, 1946, 1952, 2016, 2085, 2135, 2160, 2196, 2224, 2440, 2502, 2520, 2562, 2745, 2780, 2919, 2928, 3024, 3294, 3336, 3360, 3416, 3660, 3753, 3780, 3843, 3892, 4170, 4270, 4320, 4392, 4448, 4865, 4880, 5004, 5040, 5124, 5490, 5560, 5838, 5856, 6048, 6255, 6405, 6588, 6672, 6832, 7320, 7506, 7560, 7686, 7784, 8235, 8340, 8479, 8540, 8757, 8784, 9730, 9760, 10008, 10080, 10248, 10980, 11120, 11529, 11676, 12510, 12810, 13176, 13344, 13664, 14595, 14640, 15012, 15120, 15372, 15568, 16470, 16680, 16958, 17080, 17514, 17568, 18765, 19215, 19460, 20016, 20496, 21960, 22240, 23058, 23352, 25020, 25437, 25620, 26271, 26352, 29190, 29280, 30024, 30240, 30744, 31136, 32940, 33360, 33916, 34160, 35028, 37530, 38430, 38920, 40032, 40992, 42395, 43785, 43920, 46116, 46704, 50040, 50874, 51240, 52542, 52704, 57645, 58380, 59353, 60048, 61488, 65880, 66720, 67832, 68320, 70056, 75060, 76311, 76860, 77840, 84790, 87570, 87840, 92232, 93408, 100080, 101748, 102480, 105084, 115290, 116760, 118706, 120096, 122976, 127185, 131355, 131760, 135664, 140112, 150120, 152622, 153720, 155680, 169580, 175140, 178059, 184464, 200160, 203496, 204960, 210168, 228933, 230580, 233520, 237412, 254370, 262710, 263520, 271328, 280224, 296765, 300240, 305244, 307440, 339160, 350280, 356118, 368928, 381555, 406992, 420336, 457866, 461160, 467040, 474824, 508740, 525420, 534177, 593530, 600480, 610488, 614880, 678320, 700560, 712236, 763110, 813984, 840672, 890295, 915732, 922320, 949648, 1017480, 1050840, 1068354, 1144665, 1187060, 1220976, 1356640, 1401120, 1424472, 1526220, 1602531, 1780590, 1831464, 1844640, 1899296, 2034960, 2101680, 2136708, 2289330, 2374120, 2441952, 2670885, 2848944, 3052440, 3205062, 3561180, 3662928, 4069920, 4203360, 4273416, 4578660, 4748240, 5341770, 5697888, 6104880, 6410124, 7122360, 7325856, 8012655, 8546832, 9157320, 9496480, 10683540, 12209760, 12820248, 14244720, 16025310, 17093664, 18314640, 21367080, 25640496, 28489440, 32050620, 36629280, 42734160, 51280992, 64101240, 85468320, 128202480, 256404960]

約数ペア:

[(1, 256404960), (2, 128202480), (3, 85468320), (4, 64101240), (5, 51280992), (6, 42734160), (7, 36629280), (8, 32050620), (9, 28489440), (10, 25640496), (12, 21367080), (14, 18314640), (15, 17093664), (16, 16025310), (18, 14244720), (20, 12820248), (21, 12209760), (24, 10683540), (27, 9496480), (28, 9157320), (30, 8546832), (32, 8012655), (35, 7325856), (36, 7122360), (40, 6410124), (42, 6104880), (45, 5697888), (48, 5341770), (54, 4748240), (56, 4578660), (60, 4273416), (61, 4203360), (63, 4069920), (70, 3662928), (72, 3561180), (80, 3205062), (84, 3052440), (90, 2848944), (96, 2670885), (105, 2441952), (108, 2374120), (112, 2289330), (120, 2136708), (122, 2101680), (126, 2034960), (135, 1899296), (139, 1844640), (140, 1831464), (144, 1780590), (160, 1602531), (168, 1526220), (180, 1424472), (183, 1401120), (189, 1356640), (210, 1220976), (216, 1187060), (224, 1144665), (240, 1068354), (244, 1050840), (252, 1017480), (270, 949648), (278, 922320), (280, 915732), (288, 890295), (305, 840672), (315, 813984), (336, 763110), (360, 712236), (366, 700560), (378, 678320), (417, 614880), (420, 610488), (427, 600480), (432, 593530), (480, 534177), (488, 525420), (504, 508740), (540, 474824), (549, 467040), (556, 461160), (560, 457866), (610, 420336), (630, 406992), (672, 381555), (695, 368928), (720, 356118), (732, 350280), (756, 339160), (834, 307440), (840, 305244), (854, 300240), (864, 296765), (915, 280224), (945, 271328), (973, 263520), (976, 262710), (1008, 254370), (1080, 237412), (1098, 233520), (1112, 230580), (1120, 228933), (1220, 210168), (1251, 204960), (1260, 203496), (1281, 200160), (1390, 184464), (1440, 178059), (1464, 175140), (1512, 169580), (1647, 155680), (1668, 153720), (1680, 152622), (1708, 150120), (1830, 140112), (1890, 135664), (1946, 131760), (1952, 131355), (2016, 127185), (2085, 122976), (2135, 120096), (2160, 118706), (2196, 116760), (2224, 115290), (2440, 105084), (2502, 102480), (2520, 101748), (2562, 100080), (2745, 93408), (2780, 92232), (2919, 87840), (2928, 87570), (3024, 84790), (3294, 77840), (3336, 76860), (3360, 76311), (3416, 75060), (3660, 70056), (3753, 68320), (3780, 67832), (3843, 66720), (3892, 65880), (4170, 61488), (4270, 60048), (4320, 59353), (4392, 58380), (4448, 57645), (4865, 52704), (4880, 52542), (5004, 51240), (5040, 50874), (5124, 50040), (5490, 46704), (5560, 46116), (5838, 43920), (5856, 43785), (6048, 42395), (6255, 40992), (6405, 40032), (6588, 38920), (6672, 38430), (6832, 37530), (7320, 35028), (7506, 34160), (7560, 33916), (7686, 33360), (7784, 32940), (8235, 31136), (8340, 30744), (8479, 30240), (8540, 30024), (8757, 29280), (8784, 29190), (9730, 26352), (9760, 26271), (10008, 25620), (10080, 25437), (10248, 25020), (10980, 23352), (11120, 23058), (11529, 22240), (11676, 21960), (12510, 20496), (12810, 20016), (13176, 19460), (13344, 19215), (13664, 18765), (14595, 17568), (14640, 17514), (15012, 17080), (15120, 16958), (15372, 16680), (15568, 16470)]