256478400

素因数分解:

$2^6\times 3^4\times 5^2\times {\mathrm{1979}}^1$

素因数の和:2013

約数の個数: 210

約数和(自身を含む): 943226460

約数和(自身を除く): 686748060

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 27, 30, 32, 36, 40, 45, 48, 50, 54, 60, 64, 72, 75, 80, 81, 90, 96, 100, 108, 120, 135, 144, 150, 160, 162, 180, 192, 200, 216, 225, 240, 270, 288, 300, 320, 324, 360, 400, 405, 432, 450, 480, 540, 576, 600, 648, 675, 720, 800, 810, 864, 900, 960, 1080, 1200, 1296, 1350, 1440, 1600, 1620, 1728, 1800, 1979, 2025, 2160, 2400, 2592, 2700, 2880, 3240, 3600, 3958, 4050, 4320, 4800, 5184, 5400, 5937, 6480, 7200, 7916, 8100, 8640, 9895, 10800, 11874, 12960, 14400, 15832, 16200, 17811, 19790, 21600, 23748, 25920, 29685, 31664, 32400, 35622, 39580, 43200, 47496, 49475, 53433, 59370, 63328, 64800, 71244, 79160, 89055, 94992, 98950, 106866, 118740, 126656, 129600, 142488, 148425, 158320, 160299, 178110, 189984, 197900, 213732, 237480, 267165, 284976, 296850, 316640, 320598, 356220, 379968, 395800, 427464, 445275, 474960, 534330, 569952, 593700, 633280, 641196, 712440, 791600, 801495, 854928, 890550, 949920, 1068660, 1139904, 1187400, 1282392, 1335825, 1424880, 1583200, 1602990, 1709856, 1781100, 1899840, 2137320, 2374800, 2564784, 2671650, 2849760, 3166400, 3205980, 3419712, 3562200, 4007475, 4274640, 4749600, 5129568, 5343300, 5699520, 6411960, 7124400, 8014950, 8549280, 9499200, 10259136, 10686600, 12823920, 14248800, 16029900, 17098560, 21373200, 25647840, 28497600, 32059800, 42746400, 51295680, 64119600, 85492800, 128239200, 256478400]

約数ペア:

[(1, 256478400), (2, 128239200), (3, 85492800), (4, 64119600), (5, 51295680), (6, 42746400), (8, 32059800), (9, 28497600), (10, 25647840), (12, 21373200), (15, 17098560), (16, 16029900), (18, 14248800), (20, 12823920), (24, 10686600), (25, 10259136), (27, 9499200), (30, 8549280), (32, 8014950), (36, 7124400), (40, 6411960), (45, 5699520), (48, 5343300), (50, 5129568), (54, 4749600), (60, 4274640), (64, 4007475), (72, 3562200), (75, 3419712), (80, 3205980), (81, 3166400), (90, 2849760), (96, 2671650), (100, 2564784), (108, 2374800), (120, 2137320), (135, 1899840), (144, 1781100), (150, 1709856), (160, 1602990), (162, 1583200), (180, 1424880), (192, 1335825), (200, 1282392), (216, 1187400), (225, 1139904), (240, 1068660), (270, 949920), (288, 890550), (300, 854928), (320, 801495), (324, 791600), (360, 712440), (400, 641196), (405, 633280), (432, 593700), (450, 569952), (480, 534330), (540, 474960), (576, 445275), (600, 427464), (648, 395800), (675, 379968), (720, 356220), (800, 320598), (810, 316640), (864, 296850), (900, 284976), (960, 267165), (1080, 237480), (1200, 213732), (1296, 197900), (1350, 189984), (1440, 178110), (1600, 160299), (1620, 158320), (1728, 148425), (1800, 142488), (1979, 129600), (2025, 126656), (2160, 118740), (2400, 106866), (2592, 98950), (2700, 94992), (2880, 89055), (3240, 79160), (3600, 71244), (3958, 64800), (4050, 63328), (4320, 59370), (4800, 53433), (5184, 49475), (5400, 47496), (5937, 43200), (6480, 39580), (7200, 35622), (7916, 32400), (8100, 31664), (8640, 29685), (9895, 25920), (10800, 23748), (11874, 21600), (12960, 19790), (14400, 17811), (15832, 16200)]