261269280

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{307}}^1$

素因数の和:528

約数の個数: 192

約数和(自身を含む): 922078080

約数和(自身を除く): 660808800

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 72, 80, 90, 96, 108, 120, 135, 144, 160, 180, 197, 216, 240, 270, 288, 307, 360, 394, 432, 480, 540, 591, 614, 720, 788, 864, 921, 985, 1080, 1182, 1228, 1440, 1535, 1576, 1773, 1842, 1970, 2160, 2364, 2456, 2763, 2955, 3070, 3152, 3546, 3684, 3940, 4320, 4605, 4728, 4912, 5319, 5526, 5910, 6140, 6304, 7092, 7368, 7880, 8289, 8865, 9210, 9456, 9824, 10638, 11052, 11820, 12280, 13815, 14184, 14736, 15760, 16578, 17730, 18420, 18912, 21276, 22104, 23640, 24560, 26595, 27630, 28368, 29472, 31520, 33156, 35460, 36840, 41445, 42552, 44208, 47280, 49120, 53190, 55260, 56736, 60479, 66312, 70920, 73680, 82890, 85104, 88416, 94560, 106380, 110520, 120958, 132624, 141840, 147360, 165780, 170208, 181437, 212760, 221040, 241916, 265248, 283680, 302395, 331560, 362874, 425520, 442080, 483832, 544311, 604790, 663120, 725748, 851040, 907185, 967664, 1088622, 1209580, 1326240, 1451496, 1632933, 1814370, 1935328, 2177244, 2419160, 2721555, 2902992, 3265866, 3628740, 4354488, 4838320, 5443110, 5805984, 6531732, 7257480, 8164665, 8708976, 9676640, 10886220, 13063464, 14514960, 16329330, 17417952, 21772440, 26126928, 29029920, 32658660, 43544880, 52253856, 65317320, 87089760, 130634640, 261269280]

約数ペア:

[(1, 261269280), (2, 130634640), (3, 87089760), (4, 65317320), (5, 52253856), (6, 43544880), (8, 32658660), (9, 29029920), (10, 26126928), (12, 21772440), (15, 17417952), (16, 16329330), (18, 14514960), (20, 13063464), (24, 10886220), (27, 9676640), (30, 8708976), (32, 8164665), (36, 7257480), (40, 6531732), (45, 5805984), (48, 5443110), (54, 4838320), (60, 4354488), (72, 3628740), (80, 3265866), (90, 2902992), (96, 2721555), (108, 2419160), (120, 2177244), (135, 1935328), (144, 1814370), (160, 1632933), (180, 1451496), (197, 1326240), (216, 1209580), (240, 1088622), (270, 967664), (288, 907185), (307, 851040), (360, 725748), (394, 663120), (432, 604790), (480, 544311), (540, 483832), (591, 442080), (614, 425520), (720, 362874), (788, 331560), (864, 302395), (921, 283680), (985, 265248), (1080, 241916), (1182, 221040), (1228, 212760), (1440, 181437), (1535, 170208), (1576, 165780), (1773, 147360), (1842, 141840), (1970, 132624), (2160, 120958), (2364, 110520), (2456, 106380), (2763, 94560), (2955, 88416), (3070, 85104), (3152, 82890), (3546, 73680), (3684, 70920), (3940, 66312), (4320, 60479), (4605, 56736), (4728, 55260), (4912, 53190), (5319, 49120), (5526, 47280), (5910, 44208), (6140, 42552), (6304, 41445), (7092, 36840), (7368, 35460), (7880, 33156), (8289, 31520), (8865, 29472), (9210, 28368), (9456, 27630), (9824, 26595), (10638, 24560), (11052, 23640), (11820, 22104), (12280, 21276), (13815, 18912), (14184, 18420), (14736, 17730), (15760, 16578)]