1279883520

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{241}}^1\times {\mathrm{461}}^1$

素因数の和:729

約数の個数: 216

約数和(自身を含む): 4456283832

約数和(自身を除く): 3176400312

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 128, 144, 160, 180, 192, 240, 241, 256, 288, 320, 360, 384, 461, 480, 482, 576, 640, 720, 723, 768, 922, 960, 964, 1152, 1205, 1280, 1383, 1440, 1446, 1844, 1920, 1928, 2169, 2304, 2305, 2410, 2766, 2880, 2892, 3615, 3688, 3840, 3856, 4149, 4338, 4610, 4820, 5532, 5760, 5784, 6915, 7230, 7376, 7712, 8298, 8676, 9220, 9640, 10845, 11064, 11520, 11568, 13830, 14460, 14752, 15424, 16596, 17352, 18440, 19280, 20745, 21690, 22128, 23136, 27660, 28920, 29504, 30848, 33192, 34704, 36880, 38560, 41490, 43380, 44256, 46272, 55320, 57840, 59008, 61696, 66384, 69408, 73760, 77120, 82980, 86760, 88512, 92544, 110640, 111101, 115680, 118016, 132768, 138816, 147520, 154240, 165960, 173520, 177024, 185088, 221280, 222202, 231360, 265536, 277632, 295040, 308480, 331920, 333303, 347040, 354048, 442560, 444404, 462720, 531072, 555264, 555505, 590080, 663840, 666606, 694080, 885120, 888808, 925440, 999909, 1062144, 1111010, 1327680, 1333212, 1388160, 1666515, 1770240, 1777616, 1999818, 2222020, 2655360, 2666424, 2776320, 3333030, 3555232, 3999636, 4444040, 4999545, 5310720, 5332848, 6666060, 7110464, 7999272, 8888080, 9999090, 10665696, 13332120, 14220928, 15998544, 17776160, 19998180, 21331392, 26664240, 28441856, 31997088, 35552320, 39996360, 42662784, 53328480, 63994176, 71104640, 79992720, 85325568, 106656960, 127988352, 142209280, 159985440, 213313920, 255976704, 319970880, 426627840, 639941760, 1279883520]

約数ペア:

[(1, 1279883520), (2, 639941760), (3, 426627840), (4, 319970880), (5, 255976704), (6, 213313920), (8, 159985440), (9, 142209280), (10, 127988352), (12, 106656960), (15, 85325568), (16, 79992720), (18, 71104640), (20, 63994176), (24, 53328480), (30, 42662784), (32, 39996360), (36, 35552320), (40, 31997088), (45, 28441856), (48, 26664240), (60, 21331392), (64, 19998180), (72, 17776160), (80, 15998544), (90, 14220928), (96, 13332120), (120, 10665696), (128, 9999090), (144, 8888080), (160, 7999272), (180, 7110464), (192, 6666060), (240, 5332848), (241, 5310720), (256, 4999545), (288, 4444040), (320, 3999636), (360, 3555232), (384, 3333030), (461, 2776320), (480, 2666424), (482, 2655360), (576, 2222020), (640, 1999818), (720, 1777616), (723, 1770240), (768, 1666515), (922, 1388160), (960, 1333212), (964, 1327680), (1152, 1111010), (1205, 1062144), (1280, 999909), (1383, 925440), (1440, 888808), (1446, 885120), (1844, 694080), (1920, 666606), (1928, 663840), (2169, 590080), (2304, 555505), (2305, 555264), (2410, 531072), (2766, 462720), (2880, 444404), (2892, 442560), (3615, 354048), (3688, 347040), (3840, 333303), (3856, 331920), (4149, 308480), (4338, 295040), (4610, 277632), (4820, 265536), (5532, 231360), (5760, 222202), (5784, 221280), (6915, 185088), (7230, 177024), (7376, 173520), (7712, 165960), (8298, 154240), (8676, 147520), (9220, 138816), (9640, 132768), (10845, 118016), (11064, 115680), (11520, 111101), (11568, 110640), (13830, 92544), (14460, 88512), (14752, 86760), (15424, 82980), (16596, 77120), (17352, 73760), (18440, 69408), (19280, 66384), (20745, 61696), (21690, 59008), (22128, 57840), (23136, 55320), (27660, 46272), (28920, 44256), (29504, 43380), (30848, 41490), (33192, 38560), (34704, 36880)]