261256320

素因数分解:

$2^7\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1163}}^1$

素因数の和:1204

約数の個数: 256

約数和(自身を含む): 997315200

約数和(自身を除く): 736058880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 27, 30, 32, 36, 39, 40, 45, 48, 52, 54, 60, 64, 65, 72, 78, 80, 90, 96, 104, 108, 117, 120, 128, 130, 135, 144, 156, 160, 180, 192, 195, 208, 216, 234, 240, 260, 270, 288, 312, 320, 351, 360, 384, 390, 416, 432, 468, 480, 520, 540, 576, 585, 624, 640, 702, 720, 780, 832, 864, 936, 960, 1040, 1080, 1152, 1163, 1170, 1248, 1404, 1440, 1560, 1664, 1728, 1755, 1872, 1920, 2080, 2160, 2326, 2340, 2496, 2808, 2880, 3120, 3456, 3489, 3510, 3744, 4160, 4320, 4652, 4680, 4992, 5616, 5760, 5815, 6240, 6978, 7020, 7488, 8320, 8640, 9304, 9360, 10467, 11232, 11630, 12480, 13956, 14040, 14976, 15119, 17280, 17445, 18608, 18720, 20934, 22464, 23260, 24960, 27912, 28080, 30238, 31401, 34890, 37216, 37440, 41868, 44928, 45357, 46520, 52335, 55824, 56160, 60476, 62802, 69780, 74432, 74880, 75595, 83736, 90714, 93040, 104670, 111648, 112320, 120952, 125604, 136071, 139560, 148864, 151190, 157005, 167472, 181428, 186080, 209340, 223296, 224640, 226785, 241904, 251208, 272142, 279120, 302380, 314010, 334944, 362856, 372160, 408213, 418680, 446592, 453570, 483808, 502416, 544284, 558240, 604760, 628020, 669888, 680355, 725712, 744320, 816426, 837360, 907140, 967616, 1004832, 1088568, 1116480, 1209520, 1256040, 1339776, 1360710, 1451424, 1632852, 1674720, 1814280, 1935232, 2009664, 2041065, 2177136, 2232960, 2419040, 2512080, 2721420, 2902848, 3265704, 3349440, 3628560, 4019328, 4082130, 4354272, 4838080, 5024160, 5442840, 5805696, 6531408, 6698880, 7257120, 8164260, 8708544, 9676160, 10048320, 10885680, 13062816, 14514240, 16328520, 17417088, 20096640, 21771360, 26125632, 29028480, 32657040, 43542720, 52251264, 65314080, 87085440, 130628160, 261256320]

約数ペア:

[(1, 261256320), (2, 130628160), (3, 87085440), (4, 65314080), (5, 52251264), (6, 43542720), (8, 32657040), (9, 29028480), (10, 26125632), (12, 21771360), (13, 20096640), (15, 17417088), (16, 16328520), (18, 14514240), (20, 13062816), (24, 10885680), (26, 10048320), (27, 9676160), (30, 8708544), (32, 8164260), (36, 7257120), (39, 6698880), (40, 6531408), (45, 5805696), (48, 5442840), (52, 5024160), (54, 4838080), (60, 4354272), (64, 4082130), (65, 4019328), (72, 3628560), (78, 3349440), (80, 3265704), (90, 2902848), (96, 2721420), (104, 2512080), (108, 2419040), (117, 2232960), (120, 2177136), (128, 2041065), (130, 2009664), (135, 1935232), (144, 1814280), (156, 1674720), (160, 1632852), (180, 1451424), (192, 1360710), (195, 1339776), (208, 1256040), (216, 1209520), (234, 1116480), (240, 1088568), (260, 1004832), (270, 967616), (288, 907140), (312, 837360), (320, 816426), (351, 744320), (360, 725712), (384, 680355), (390, 669888), (416, 628020), (432, 604760), (468, 558240), (480, 544284), (520, 502416), (540, 483808), (576, 453570), (585, 446592), (624, 418680), (640, 408213), (702, 372160), (720, 362856), (780, 334944), (832, 314010), (864, 302380), (936, 279120), (960, 272142), (1040, 251208), (1080, 241904), (1152, 226785), (1163, 224640), (1170, 223296), (1248, 209340), (1404, 186080), (1440, 181428), (1560, 167472), (1664, 157005), (1728, 151190), (1755, 148864), (1872, 139560), (1920, 136071), (2080, 125604), (2160, 120952), (2326, 112320), (2340, 111648), (2496, 104670), (2808, 93040), (2880, 90714), (3120, 83736), (3456, 75595), (3489, 74880), (3510, 74432), (3744, 69780), (4160, 62802), (4320, 60476), (4652, 56160), (4680, 55824), (4992, 52335), (5616, 46520), (5760, 45357), (5815, 44928), (6240, 41868), (6978, 37440), (7020, 37216), (7488, 34890), (8320, 31401), (8640, 30238), (9304, 28080), (9360, 27912), (10467, 24960), (11232, 23260), (11630, 22464), (12480, 20934), (13956, 18720), (14040, 18608), (14976, 17445), (15119, 17280)]