1990296720

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{3877}}^1$

素因数の和:3950

約数の個数: 240

約数和(自身を含む): 7201539072

約数和(自身を除く): 5211242352

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 30, 31, 36, 40, 45, 46, 48, 60, 62, 69, 72, 80, 90, 92, 93, 115, 120, 124, 138, 144, 155, 180, 184, 186, 207, 230, 240, 248, 276, 279, 310, 345, 360, 368, 372, 414, 460, 465, 496, 552, 558, 620, 690, 713, 720, 744, 828, 920, 930, 1035, 1104, 1116, 1240, 1380, 1395, 1426, 1488, 1656, 1840, 1860, 2070, 2139, 2232, 2480, 2760, 2790, 2852, 3312, 3565, 3720, 3877, 4140, 4278, 4464, 5520, 5580, 5704, 6417, 7130, 7440, 7754, 8280, 8556, 10695, 11160, 11408, 11631, 12834, 14260, 15508, 16560, 17112, 19385, 21390, 22320, 23262, 25668, 28520, 31016, 32085, 34224, 34893, 38770, 42780, 46524, 51336, 57040, 58155, 62032, 64170, 69786, 77540, 85560, 89171, 93048, 102672, 116310, 120187, 128340, 139572, 155080, 171120, 174465, 178342, 186096, 232620, 240374, 256680, 267513, 279144, 310160, 348930, 356684, 360561, 445855, 465240, 480748, 513360, 535026, 558288, 600935, 697860, 713368, 721122, 802539, 891710, 930480, 961496, 1070052, 1081683, 1201870, 1337565, 1395720, 1426736, 1442244, 1605078, 1783420, 1802805, 1922992, 2140104, 2163366, 2403740, 2675130, 2764301, 2791440, 2884488, 3210156, 3566840, 3605610, 4012695, 4280208, 4326732, 4807480, 5350260, 5408415, 5528602, 5768976, 6420312, 7133680, 7211220, 8025390, 8292903, 8653464, 9614960, 10700520, 10816830, 11057204, 12840624, 13821505, 14422440, 16050780, 16585806, 17306928, 21401040, 21633660, 22114408, 24878709, 27643010, 28844880, 32101560, 33171612, 41464515, 43267320, 44228816, 49757418, 55286020, 64203120, 66343224, 82929030, 86534640, 99514836, 110572040, 124393545, 132686448, 165858060, 199029672, 221144080, 248787090, 331716120, 398059344, 497574180, 663432240, 995148360, 1990296720]

約数ペア:

[(1, 1990296720), (2, 995148360), (3, 663432240), (4, 497574180), (5, 398059344), (6, 331716120), (8, 248787090), (9, 221144080), (10, 199029672), (12, 165858060), (15, 132686448), (16, 124393545), (18, 110572040), (20, 99514836), (23, 86534640), (24, 82929030), (30, 66343224), (31, 64203120), (36, 55286020), (40, 49757418), (45, 44228816), (46, 43267320), (48, 41464515), (60, 33171612), (62, 32101560), (69, 28844880), (72, 27643010), (80, 24878709), (90, 22114408), (92, 21633660), (93, 21401040), (115, 17306928), (120, 16585806), (124, 16050780), (138, 14422440), (144, 13821505), (155, 12840624), (180, 11057204), (184, 10816830), (186, 10700520), (207, 9614960), (230, 8653464), (240, 8292903), (248, 8025390), (276, 7211220), (279, 7133680), (310, 6420312), (345, 5768976), (360, 5528602), (368, 5408415), (372, 5350260), (414, 4807480), (460, 4326732), (465, 4280208), (496, 4012695), (552, 3605610), (558, 3566840), (620, 3210156), (690, 2884488), (713, 2791440), (720, 2764301), (744, 2675130), (828, 2403740), (920, 2163366), (930, 2140104), (1035, 1922992), (1104, 1802805), (1116, 1783420), (1240, 1605078), (1380, 1442244), (1395, 1426736), (1426, 1395720), (1488, 1337565), (1656, 1201870), (1840, 1081683), (1860, 1070052), (2070, 961496), (2139, 930480), (2232, 891710), (2480, 802539), (2760, 721122), (2790, 713368), (2852, 697860), (3312, 600935), (3565, 558288), (3720, 535026), (3877, 513360), (4140, 480748), (4278, 465240), (4464, 445855), (5520, 360561), (5580, 356684), (5704, 348930), (6417, 310160), (7130, 279144), (7440, 267513), (7754, 256680), (8280, 240374), (8556, 232620), (10695, 186096), (11160, 178342), (11408, 174465), (11631, 171120), (12834, 155080), (14260, 139572), (15508, 128340), (16560, 120187), (17112, 116310), (19385, 102672), (21390, 93048), (22320, 89171), (23262, 85560), (25668, 77540), (28520, 69786), (31016, 64170), (32085, 62032), (34224, 58155), (34893, 57040), (38770, 51336), (42780, 46524)]