257394240

素因数分解:

$2^6\times 3^3\times 5^1\times {\mathrm{31}}^3$

素因数の和:119

約数の個数: 224

約数和(自身を含む): 938296320

約数和(自身を除く): 680902080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 31, 32, 36, 40, 45, 48, 54, 60, 62, 64, 72, 80, 90, 93, 96, 108, 120, 124, 135, 144, 155, 160, 180, 186, 192, 216, 240, 248, 270, 279, 288, 310, 320, 360, 372, 432, 465, 480, 496, 540, 558, 576, 620, 720, 744, 837, 864, 930, 960, 961, 992, 1080, 1116, 1240, 1395, 1440, 1488, 1674, 1728, 1860, 1922, 1984, 2160, 2232, 2480, 2790, 2880, 2883, 2976, 3348, 3720, 3844, 4185, 4320, 4464, 4805, 4960, 5580, 5766, 5952, 6696, 7440, 7688, 8370, 8640, 8649, 8928, 9610, 9920, 11160, 11532, 13392, 14415, 14880, 15376, 16740, 17298, 17856, 19220, 22320, 23064, 25947, 26784, 28830, 29760, 29791, 30752, 33480, 34596, 38440, 43245, 44640, 46128, 51894, 53568, 57660, 59582, 61504, 66960, 69192, 76880, 86490, 89280, 89373, 92256, 103788, 115320, 119164, 129735, 133920, 138384, 148955, 153760, 172980, 178746, 184512, 207576, 230640, 238328, 259470, 267840, 268119, 276768, 297910, 307520, 345960, 357492, 415152, 446865, 461280, 476656, 518940, 536238, 553536, 595820, 691920, 714984, 804357, 830304, 893730, 922560, 953312, 1037880, 1072476, 1191640, 1340595, 1383840, 1429968, 1608714, 1660608, 1787460, 1906624, 2075760, 2144952, 2383280, 2681190, 2767680, 2859936, 3217428, 3574920, 4021785, 4151520, 4289904, 4766560, 5362380, 5719872, 6434856, 7149840, 8043570, 8303040, 8579808, 9533120, 10724760, 12869712, 14299680, 16087140, 17159616, 21449520, 25739424, 28599360, 32174280, 42899040, 51478848, 64348560, 85798080, 128697120, 257394240]

約数ペア:

[(1, 257394240), (2, 128697120), (3, 85798080), (4, 64348560), (5, 51478848), (6, 42899040), (8, 32174280), (9, 28599360), (10, 25739424), (12, 21449520), (15, 17159616), (16, 16087140), (18, 14299680), (20, 12869712), (24, 10724760), (27, 9533120), (30, 8579808), (31, 8303040), (32, 8043570), (36, 7149840), (40, 6434856), (45, 5719872), (48, 5362380), (54, 4766560), (60, 4289904), (62, 4151520), (64, 4021785), (72, 3574920), (80, 3217428), (90, 2859936), (93, 2767680), (96, 2681190), (108, 2383280), (120, 2144952), (124, 2075760), (135, 1906624), (144, 1787460), (155, 1660608), (160, 1608714), (180, 1429968), (186, 1383840), (192, 1340595), (216, 1191640), (240, 1072476), (248, 1037880), (270, 953312), (279, 922560), (288, 893730), (310, 830304), (320, 804357), (360, 714984), (372, 691920), (432, 595820), (465, 553536), (480, 536238), (496, 518940), (540, 476656), (558, 461280), (576, 446865), (620, 415152), (720, 357492), (744, 345960), (837, 307520), (864, 297910), (930, 276768), (960, 268119), (961, 267840), (992, 259470), (1080, 238328), (1116, 230640), (1240, 207576), (1395, 184512), (1440, 178746), (1488, 172980), (1674, 153760), (1728, 148955), (1860, 138384), (1922, 133920), (1984, 129735), (2160, 119164), (2232, 115320), (2480, 103788), (2790, 92256), (2880, 89373), (2883, 89280), (2976, 86490), (3348, 76880), (3720, 69192), (3844, 66960), (4185, 61504), (4320, 59582), (4464, 57660), (4805, 53568), (4960, 51894), (5580, 46128), (5766, 44640), (5952, 43245), (6696, 38440), (7440, 34596), (7688, 33480), (8370, 30752), (8640, 29791), (8649, 29760), (8928, 28830), (9610, 26784), (9920, 25947), (11160, 23064), (11532, 22320), (13392, 19220), (14415, 17856), (14880, 17298), (15376, 16740)]