18917280

素因数分解:

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

素因数の和:204

約数の個数: 192

約数和(自身を含む): 68947200

約数和(自身を除く): 50029920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 29, 30, 32, 36, 40, 45, 48, 54, 58, 60, 72, 80, 87, 90, 96, 108, 116, 120, 135, 144, 145, 151, 160, 174, 180, 216, 232, 240, 261, 270, 288, 290, 302, 348, 360, 432, 435, 453, 464, 480, 522, 540, 580, 604, 696, 720, 755, 783, 864, 870, 906, 928, 1044, 1080, 1160, 1208, 1305, 1359, 1392, 1440, 1510, 1566, 1740, 1812, 2088, 2160, 2265, 2320, 2416, 2610, 2718, 2784, 3020, 3132, 3480, 3624, 3915, 4077, 4176, 4320, 4379, 4530, 4640, 4832, 5220, 5436, 6040, 6264, 6795, 6960, 7248, 7830, 8154, 8352, 8758, 9060, 10440, 10872, 12080, 12528, 13137, 13590, 13920, 14496, 15660, 16308, 17516, 18120, 20385, 20880, 21744, 21895, 24160, 25056, 26274, 27180, 31320, 32616, 35032, 36240, 39411, 40770, 41760, 43488, 43790, 52548, 54360, 62640, 65232, 65685, 70064, 72480, 78822, 81540, 87580, 105096, 108720, 118233, 125280, 130464, 131370, 140128, 157644, 163080, 175160, 197055, 210192, 217440, 236466, 262740, 315288, 326160, 350320, 394110, 420384, 472932, 525480, 591165, 630576, 652320, 700640, 788220, 945864, 1050960, 1182330, 1261152, 1576440, 1891728, 2101920, 2364660, 3152880, 3783456, 4729320, 6305760, 9458640, 18917280]

約数ペア:

[(1, 18917280), (2, 9458640), (3, 6305760), (4, 4729320), (5, 3783456), (6, 3152880), (8, 2364660), (9, 2101920), (10, 1891728), (12, 1576440), (15, 1261152), (16, 1182330), (18, 1050960), (20, 945864), (24, 788220), (27, 700640), (29, 652320), (30, 630576), (32, 591165), (36, 525480), (40, 472932), (45, 420384), (48, 394110), (54, 350320), (58, 326160), (60, 315288), (72, 262740), (80, 236466), (87, 217440), (90, 210192), (96, 197055), (108, 175160), (116, 163080), (120, 157644), (135, 140128), (144, 131370), (145, 130464), (151, 125280), (160, 118233), (174, 108720), (180, 105096), (216, 87580), (232, 81540), (240, 78822), (261, 72480), (270, 70064), (288, 65685), (290, 65232), (302, 62640), (348, 54360), (360, 52548), (432, 43790), (435, 43488), (453, 41760), (464, 40770), (480, 39411), (522, 36240), (540, 35032), (580, 32616), (604, 31320), (696, 27180), (720, 26274), (755, 25056), (783, 24160), (864, 21895), (870, 21744), (906, 20880), (928, 20385), (1044, 18120), (1080, 17516), (1160, 16308), (1208, 15660), (1305, 14496), (1359, 13920), (1392, 13590), (1440, 13137), (1510, 12528), (1566, 12080), (1740, 10872), (1812, 10440), (2088, 9060), (2160, 8758), (2265, 8352), (2320, 8154), (2416, 7830), (2610, 7248), (2718, 6960), (2784, 6795), (3020, 6264), (3132, 6040), (3480, 5436), (3624, 5220), (3915, 4832), (4077, 4640), (4176, 4530), (4320, 4379)]