21053928480

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{263}}^1\times {\mathrm{12829}}^1$

素因数の和:13123

約数の個数: 192

約数和(自身を含む): 71698556160

約数和(自身を除く): 50644627680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 65, 78, 80, 96, 104, 120, 130, 156, 160, 195, 208, 240, 260, 263, 312, 390, 416, 480, 520, 526, 624, 780, 789, 1040, 1052, 1248, 1315, 1560, 1578, 2080, 2104, 2630, 3120, 3156, 3419, 3945, 4208, 5260, 6240, 6312, 6838, 7890, 8416, 10257, 10520, 12624, 12829, 13676, 15780, 17095, 20514, 21040, 25248, 25658, 27352, 31560, 34190, 38487, 41028, 42080, 51285, 51316, 54704, 63120, 64145, 68380, 76974, 82056, 102570, 102632, 109408, 126240, 128290, 136760, 153948, 164112, 166777, 192435, 205140, 205264, 256580, 273520, 307896, 328224, 333554, 384870, 410280, 410528, 500331, 513160, 547040, 615792, 667108, 769740, 820560, 833885, 1000662, 1026320, 1231584, 1334216, 1539480, 1641120, 1667770, 2001324, 2052640, 2501655, 2668432, 3078960, 3335540, 3374027, 4002648, 5003310, 5336864, 6157920, 6671080, 6748054, 8005296, 10006620, 10122081, 13342160, 13496108, 16010592, 16870135, 20013240, 20244162, 26684320, 26992216, 33740270, 40026480, 40488324, 43862351, 50610405, 53984432, 67480540, 80052960, 80976648, 87724702, 101220810, 107968864, 131587053, 134961080, 161953296, 175449404, 202441620, 219311755, 263174106, 269922160, 323906592, 350898808, 404883240, 438623510, 526348212, 539844320, 657935265, 701797616, 809766480, 877247020, 1052696424, 1315870530, 1403595232, 1619532960, 1754494040, 2105392848, 2631741060, 3508988080, 4210785696, 5263482120, 7017976160, 10526964240, 21053928480]

約数ペア:

[(1, 21053928480), (2, 10526964240), (3, 7017976160), (4, 5263482120), (5, 4210785696), (6, 3508988080), (8, 2631741060), (10, 2105392848), (12, 1754494040), (13, 1619532960), (15, 1403595232), (16, 1315870530), (20, 1052696424), (24, 877247020), (26, 809766480), (30, 701797616), (32, 657935265), (39, 539844320), (40, 526348212), (48, 438623510), (52, 404883240), (60, 350898808), (65, 323906592), (78, 269922160), (80, 263174106), (96, 219311755), (104, 202441620), (120, 175449404), (130, 161953296), (156, 134961080), (160, 131587053), (195, 107968864), (208, 101220810), (240, 87724702), (260, 80976648), (263, 80052960), (312, 67480540), (390, 53984432), (416, 50610405), (480, 43862351), (520, 40488324), (526, 40026480), (624, 33740270), (780, 26992216), (789, 26684320), (1040, 20244162), (1052, 20013240), (1248, 16870135), (1315, 16010592), (1560, 13496108), (1578, 13342160), (2080, 10122081), (2104, 10006620), (2630, 8005296), (3120, 6748054), (3156, 6671080), (3419, 6157920), (3945, 5336864), (4208, 5003310), (5260, 4002648), (6240, 3374027), (6312, 3335540), (6838, 3078960), (7890, 2668432), (8416, 2501655), (10257, 2052640), (10520, 2001324), (12624, 1667770), (12829, 1641120), (13676, 1539480), (15780, 1334216), (17095, 1231584), (20514, 1026320), (21040, 1000662), (25248, 833885), (25658, 820560), (27352, 769740), (31560, 667108), (34190, 615792), (38487, 547040), (41028, 513160), (42080, 500331), (51285, 410528), (51316, 410280), (54704, 384870), (63120, 333554), (64145, 328224), (68380, 307896), (76974, 273520), (82056, 256580), (102570, 205264), (102632, 205140), (109408, 192435), (126240, 166777), (128290, 164112), (136760, 153948)]