28375920

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{151}}^1$

素因数の和:205

約数の個数: 200

約数和(自身を含む): 102627360

約数和(自身を除く): 74251440

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 29, 30, 36, 40, 45, 48, 54, 58, 60, 72, 80, 81, 87, 90, 108, 116, 120, 135, 144, 145, 151, 162, 174, 180, 216, 232, 240, 261, 270, 290, 302, 324, 348, 360, 405, 432, 435, 453, 464, 522, 540, 580, 604, 648, 696, 720, 755, 783, 810, 870, 906, 1044, 1080, 1160, 1208, 1296, 1305, 1359, 1392, 1510, 1566, 1620, 1740, 1812, 2088, 2160, 2265, 2320, 2349, 2416, 2610, 2718, 3020, 3132, 3240, 3480, 3624, 3915, 4077, 4176, 4379, 4530, 4698, 5220, 5436, 6040, 6264, 6480, 6795, 6960, 7248, 7830, 8154, 8758, 9060, 9396, 10440, 10872, 11745, 12080, 12231, 12528, 13137, 13590, 15660, 16308, 17516, 18120, 18792, 20385, 20880, 21744, 21895, 23490, 24462, 26274, 27180, 31320, 32616, 35032, 36240, 37584, 39411, 40770, 43790, 46980, 48924, 52548, 54360, 61155, 62640, 65232, 65685, 70064, 78822, 81540, 87580, 93960, 97848, 105096, 108720, 118233, 122310, 131370, 157644, 163080, 175160, 187920, 195696, 197055, 210192, 236466, 244620, 262740, 315288, 326160, 350320, 354699, 394110, 472932, 489240, 525480, 591165, 630576, 709398, 788220, 945864, 978480, 1050960, 1182330, 1418796, 1576440, 1773495, 1891728, 2364660, 2837592, 3152880, 3546990, 4729320, 5675184, 7093980, 9458640, 14187960, 28375920]

約数ペア:

[(1, 28375920), (2, 14187960), (3, 9458640), (4, 7093980), (5, 5675184), (6, 4729320), (8, 3546990), (9, 3152880), (10, 2837592), (12, 2364660), (15, 1891728), (16, 1773495), (18, 1576440), (20, 1418796), (24, 1182330), (27, 1050960), (29, 978480), (30, 945864), (36, 788220), (40, 709398), (45, 630576), (48, 591165), (54, 525480), (58, 489240), (60, 472932), (72, 394110), (80, 354699), (81, 350320), (87, 326160), (90, 315288), (108, 262740), (116, 244620), (120, 236466), (135, 210192), (144, 197055), (145, 195696), (151, 187920), (162, 175160), (174, 163080), (180, 157644), (216, 131370), (232, 122310), (240, 118233), (261, 108720), (270, 105096), (290, 97848), (302, 93960), (324, 87580), (348, 81540), (360, 78822), (405, 70064), (432, 65685), (435, 65232), (453, 62640), (464, 61155), (522, 54360), (540, 52548), (580, 48924), (604, 46980), (648, 43790), (696, 40770), (720, 39411), (755, 37584), (783, 36240), (810, 35032), (870, 32616), (906, 31320), (1044, 27180), (1080, 26274), (1160, 24462), (1208, 23490), (1296, 21895), (1305, 21744), (1359, 20880), (1392, 20385), (1510, 18792), (1566, 18120), (1620, 17516), (1740, 16308), (1812, 15660), (2088, 13590), (2160, 13137), (2265, 12528), (2320, 12231), (2349, 12080), (2416, 11745), (2610, 10872), (2718, 10440), (3020, 9396), (3132, 9060), (3240, 8758), (3480, 8154), (3624, 7830), (3915, 7248), (4077, 6960), (4176, 6795), (4379, 6480), (4530, 6264), (4698, 6040), (5220, 5436)]