81181440

素因数分解:

$2^8\times 3^7\times 5^1\times {\mathrm{29}}^1$

素因数の和:71

約数の個数: 288

約数和(自身を含む): 301694400

約数和(自身を除く): 220512960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 29, 30, 32, 36, 40, 45, 48, 54, 58, 60, 64, 72, 80, 81, 87, 90, 96, 108, 116, 120, 128, 135, 144, 145, 160, 162, 174, 180, 192, 216, 232, 240, 243, 256, 261, 270, 288, 290, 320, 324, 348, 360, 384, 405, 432, 435, 464, 480, 486, 522, 540, 576, 580, 640, 648, 696, 720, 729, 768, 783, 810, 864, 870, 928, 960, 972, 1044, 1080, 1152, 1160, 1215, 1280, 1296, 1305, 1392, 1440, 1458, 1566, 1620, 1728, 1740, 1856, 1920, 1944, 2088, 2160, 2187, 2304, 2320, 2349, 2430, 2592, 2610, 2784, 2880, 2916, 3132, 3240, 3456, 3480, 3645, 3712, 3840, 3888, 3915, 4176, 4320, 4374, 4640, 4698, 4860, 5184, 5220, 5568, 5760, 5832, 6264, 6480, 6912, 6960, 7047, 7290, 7424, 7776, 7830, 8352, 8640, 8748, 9280, 9396, 9720, 10368, 10440, 10935, 11136, 11520, 11664, 11745, 12528, 12960, 13920, 14094, 14580, 15552, 15660, 16704, 17280, 17496, 18560, 18792, 19440, 20736, 20880, 21141, 21870, 22272, 23328, 23490, 25056, 25920, 27840, 28188, 29160, 31104, 31320, 33408, 34560, 34992, 35235, 37120, 37584, 38880, 41760, 42282, 43740, 46656, 46980, 50112, 51840, 55680, 56376, 58320, 62208, 62640, 63423, 66816, 69984, 70470, 75168, 77760, 83520, 84564, 87480, 93312, 93960, 100224, 103680, 105705, 111360, 112752, 116640, 125280, 126846, 139968, 140940, 150336, 155520, 167040, 169128, 174960, 186624, 187920, 200448, 211410, 225504, 233280, 250560, 253692, 279936, 281880, 300672, 311040, 317115, 334080, 338256, 349920, 375840, 422820, 451008, 466560, 501120, 507384, 559872, 563760, 601344, 634230, 676512, 699840, 751680, 845640, 902016, 933120, 1002240, 1014768, 1127520, 1268460, 1353024, 1399680, 1503360, 1691280, 1804032, 2029536, 2255040, 2536920, 2706048, 2799360, 3006720, 3382560, 4059072, 4510080, 5073840, 5412096, 6765120, 8118144, 9020160, 10147680, 13530240, 16236288, 20295360, 27060480, 40590720, 81181440]

約数ペア:

[(1, 81181440), (2, 40590720), (3, 27060480), (4, 20295360), (5, 16236288), (6, 13530240), (8, 10147680), (9, 9020160), (10, 8118144), (12, 6765120), (15, 5412096), (16, 5073840), (18, 4510080), (20, 4059072), (24, 3382560), (27, 3006720), (29, 2799360), (30, 2706048), (32, 2536920), (36, 2255040), (40, 2029536), (45, 1804032), (48, 1691280), (54, 1503360), (58, 1399680), (60, 1353024), (64, 1268460), (72, 1127520), (80, 1014768), (81, 1002240), (87, 933120), (90, 902016), (96, 845640), (108, 751680), (116, 699840), (120, 676512), (128, 634230), (135, 601344), (144, 563760), (145, 559872), (160, 507384), (162, 501120), (174, 466560), (180, 451008), (192, 422820), (216, 375840), (232, 349920), (240, 338256), (243, 334080), (256, 317115), (261, 311040), (270, 300672), (288, 281880), (290, 279936), (320, 253692), (324, 250560), (348, 233280), (360, 225504), (384, 211410), (405, 200448), (432, 187920), (435, 186624), (464, 174960), (480, 169128), (486, 167040), (522, 155520), (540, 150336), (576, 140940), (580, 139968), (640, 126846), (648, 125280), (696, 116640), (720, 112752), (729, 111360), (768, 105705), (783, 103680), (810, 100224), (864, 93960), (870, 93312), (928, 87480), (960, 84564), (972, 83520), (1044, 77760), (1080, 75168), (1152, 70470), (1160, 69984), (1215, 66816), (1280, 63423), (1296, 62640), (1305, 62208), (1392, 58320), (1440, 56376), (1458, 55680), (1566, 51840), (1620, 50112), (1728, 46980), (1740, 46656), (1856, 43740), (1920, 42282), (1944, 41760), (2088, 38880), (2160, 37584), (2187, 37120), (2304, 35235), (2320, 34992), (2349, 34560), (2430, 33408), (2592, 31320), (2610, 31104), (2784, 29160), (2880, 28188), (2916, 27840), (3132, 25920), (3240, 25056), (3456, 23490), (3480, 23328), (3645, 22272), (3712, 21870), (3840, 21141), (3888, 20880), (3915, 20736), (4176, 19440), (4320, 18792), (4374, 18560), (4640, 17496), (4698, 17280), (4860, 16704), (5184, 15660), (5220, 15552), (5568, 14580), (5760, 14094), (5832, 13920), (6264, 12960), (6480, 12528), (6912, 11745), (6960, 11664), (7047, 11520), (7290, 11136), (7424, 10935), (7776, 10440), (7830, 10368), (8352, 9720), (8640, 9396), (8748, 9280)]