217170720

素因数分解:

$2^5\times 3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1289}}^1$

素因数の和:1329

約数の個数: 240

約数和(自身を含む): 826028280

約数和(自身を除く): 608857560

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, 65, 72, 78, 80, 81, 90, 96, 104, 108, 117, 120, 130, 135, 144, 156, 160, 162, 180, 195, 208, 216, 234, 240, 260, 270, 288, 312, 324, 351, 360, 390, 405, 416, 432, 468, 480, 520, 540, 585, 624, 648, 702, 720, 780, 810, 864, 936, 1040, 1053, 1080, 1170, 1248, 1289, 1296, 1404, 1440, 1560, 1620, 1755, 1872, 2080, 2106, 2160, 2340, 2578, 2592, 2808, 3120, 3240, 3510, 3744, 3867, 4212, 4320, 4680, 5156, 5265, 5616, 6240, 6445, 6480, 7020, 7734, 8424, 9360, 10312, 10530, 11232, 11601, 12890, 12960, 14040, 15468, 16757, 16848, 18720, 19335, 20624, 21060, 23202, 25780, 28080, 30936, 33514, 33696, 34803, 38670, 41248, 42120, 46404, 50271, 51560, 56160, 58005, 61872, 67028, 69606, 77340, 83785, 84240, 92808, 100542, 103120, 104409, 116010, 123744, 134056, 139212, 150813, 154680, 167570, 168480, 174015, 185616, 201084, 206240, 208818, 232020, 251355, 268112, 278424, 301626, 309360, 335140, 348030, 371232, 402168, 417636, 452439, 464040, 502710, 522045, 536224, 556848, 603252, 618720, 670280, 696060, 754065, 804336, 835272, 904878, 928080, 1005420, 1044090, 1113696, 1206504, 1340560, 1357317, 1392120, 1508130, 1608672, 1670544, 1809756, 1856160, 2010840, 2088180, 2262195, 2413008, 2681120, 2714634, 2784240, 3016260, 3341088, 3619512, 4021680, 4176360, 4524390, 4826016, 5429268, 5568480, 6032520, 6786585, 7239024, 8043360, 8352720, 9048780, 10858536, 12065040, 13573170, 14478048, 16705440, 18097560, 21717072, 24130080, 27146340, 36195120, 43434144, 54292680, 72390240, 108585360, 217170720]

約数ペア:

[(1, 217170720), (2, 108585360), (3, 72390240), (4, 54292680), (5, 43434144), (6, 36195120), (8, 27146340), (9, 24130080), (10, 21717072), (12, 18097560), (13, 16705440), (15, 14478048), (16, 13573170), (18, 12065040), (20, 10858536), (24, 9048780), (26, 8352720), (27, 8043360), (30, 7239024), (32, 6786585), (36, 6032520), (39, 5568480), (40, 5429268), (45, 4826016), (48, 4524390), (52, 4176360), (54, 4021680), (60, 3619512), (65, 3341088), (72, 3016260), (78, 2784240), (80, 2714634), (81, 2681120), (90, 2413008), (96, 2262195), (104, 2088180), (108, 2010840), (117, 1856160), (120, 1809756), (130, 1670544), (135, 1608672), (144, 1508130), (156, 1392120), (160, 1357317), (162, 1340560), (180, 1206504), (195, 1113696), (208, 1044090), (216, 1005420), (234, 928080), (240, 904878), (260, 835272), (270, 804336), (288, 754065), (312, 696060), (324, 670280), (351, 618720), (360, 603252), (390, 556848), (405, 536224), (416, 522045), (432, 502710), (468, 464040), (480, 452439), (520, 417636), (540, 402168), (585, 371232), (624, 348030), (648, 335140), (702, 309360), (720, 301626), (780, 278424), (810, 268112), (864, 251355), (936, 232020), (1040, 208818), (1053, 206240), (1080, 201084), (1170, 185616), (1248, 174015), (1289, 168480), (1296, 167570), (1404, 154680), (1440, 150813), (1560, 139212), (1620, 134056), (1755, 123744), (1872, 116010), (2080, 104409), (2106, 103120), (2160, 100542), (2340, 92808), (2578, 84240), (2592, 83785), (2808, 77340), (3120, 69606), (3240, 67028), (3510, 61872), (3744, 58005), (3867, 56160), (4212, 51560), (4320, 50271), (4680, 46404), (5156, 42120), (5265, 41248), (5616, 38670), (6240, 34803), (6445, 33696), (6480, 33514), (7020, 30936), (7734, 28080), (8424, 25780), (9360, 23202), (10312, 21060), (10530, 20624), (11232, 19335), (11601, 18720), (12890, 16848), (12960, 16757), (14040, 15468)]