20409840

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{859}}^1$

素因数の和:892

約数の個数: 160

約数和(自身を含む): 76780800

約数和(自身を除く): 56370960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 27, 30, 33, 36, 40, 44, 45, 48, 54, 55, 60, 66, 72, 80, 88, 90, 99, 108, 110, 120, 132, 135, 144, 165, 176, 180, 198, 216, 220, 240, 264, 270, 297, 330, 360, 396, 432, 440, 495, 528, 540, 594, 660, 720, 792, 859, 880, 990, 1080, 1188, 1320, 1485, 1584, 1718, 1980, 2160, 2376, 2577, 2640, 2970, 3436, 3960, 4295, 4752, 5154, 5940, 6872, 7731, 7920, 8590, 9449, 10308, 11880, 12885, 13744, 15462, 17180, 18898, 20616, 23193, 23760, 25770, 28347, 30924, 34360, 37796, 38655, 41232, 46386, 47245, 51540, 56694, 61848, 68720, 75592, 77310, 85041, 92772, 94490, 103080, 113388, 115965, 123696, 141735, 151184, 154620, 170082, 185544, 188980, 206160, 226776, 231930, 255123, 283470, 309240, 340164, 371088, 377960, 425205, 453552, 463860, 510246, 566940, 618480, 680328, 755920, 850410, 927720, 1020492, 1133880, 1275615, 1360656, 1700820, 1855440, 2040984, 2267760, 2551230, 3401640, 4081968, 5102460, 6803280, 10204920, 20409840]

約数ペア:

[(1, 20409840), (2, 10204920), (3, 6803280), (4, 5102460), (5, 4081968), (6, 3401640), (8, 2551230), (9, 2267760), (10, 2040984), (11, 1855440), (12, 1700820), (15, 1360656), (16, 1275615), (18, 1133880), (20, 1020492), (22, 927720), (24, 850410), (27, 755920), (30, 680328), (33, 618480), (36, 566940), (40, 510246), (44, 463860), (45, 453552), (48, 425205), (54, 377960), (55, 371088), (60, 340164), (66, 309240), (72, 283470), (80, 255123), (88, 231930), (90, 226776), (99, 206160), (108, 188980), (110, 185544), (120, 170082), (132, 154620), (135, 151184), (144, 141735), (165, 123696), (176, 115965), (180, 113388), (198, 103080), (216, 94490), (220, 92772), (240, 85041), (264, 77310), (270, 75592), (297, 68720), (330, 61848), (360, 56694), (396, 51540), (432, 47245), (440, 46386), (495, 41232), (528, 38655), (540, 37796), (594, 34360), (660, 30924), (720, 28347), (792, 25770), (859, 23760), (880, 23193), (990, 20616), (1080, 18898), (1188, 17180), (1320, 15462), (1485, 13744), (1584, 12885), (1718, 11880), (1980, 10308), (2160, 9449), (2376, 8590), (2577, 7920), (2640, 7731), (2970, 6872), (3436, 5940), (3960, 5154), (4295, 4752)]