81505080

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{211}}^1$

素因数の和:294

約数の個数: 192

約数和(自身を含む): 282765600

約数和(自身を除く): 201260520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 29, 30, 36, 37, 40, 45, 58, 60, 72, 74, 87, 90, 111, 116, 120, 145, 148, 174, 180, 185, 211, 222, 232, 261, 290, 296, 333, 348, 360, 370, 422, 435, 444, 522, 555, 580, 633, 666, 696, 740, 844, 870, 888, 1044, 1055, 1073, 1110, 1160, 1266, 1305, 1332, 1480, 1665, 1688, 1740, 1899, 2088, 2110, 2146, 2220, 2532, 2610, 2664, 3165, 3219, 3330, 3480, 3798, 4220, 4292, 4440, 5064, 5220, 5365, 6119, 6330, 6438, 6660, 7596, 7807, 8440, 8584, 9495, 9657, 10440, 10730, 12238, 12660, 12876, 13320, 15192, 15614, 16095, 18357, 18990, 19314, 21460, 23421, 24476, 25320, 25752, 30595, 31228, 32190, 36714, 37980, 38628, 39035, 42920, 46842, 48285, 48952, 55071, 61190, 62456, 64380, 70263, 73428, 75960, 77256, 78070, 91785, 93684, 96570, 110142, 117105, 122380, 128760, 140526, 146856, 156140, 183570, 187368, 193140, 220284, 226403, 234210, 244760, 275355, 281052, 312280, 351315, 367140, 386280, 440568, 452806, 468420, 550710, 562104, 679209, 702630, 734280, 905612, 936840, 1101420, 1132015, 1358418, 1405260, 1811224, 2037627, 2202840, 2264030, 2716836, 2810520, 3396045, 4075254, 4528060, 5433672, 6792090, 8150508, 9056120, 10188135, 13584180, 16301016, 20376270, 27168360, 40752540, 81505080]

約数ペア:

[(1, 81505080), (2, 40752540), (3, 27168360), (4, 20376270), (5, 16301016), (6, 13584180), (8, 10188135), (9, 9056120), (10, 8150508), (12, 6792090), (15, 5433672), (18, 4528060), (20, 4075254), (24, 3396045), (29, 2810520), (30, 2716836), (36, 2264030), (37, 2202840), (40, 2037627), (45, 1811224), (58, 1405260), (60, 1358418), (72, 1132015), (74, 1101420), (87, 936840), (90, 905612), (111, 734280), (116, 702630), (120, 679209), (145, 562104), (148, 550710), (174, 468420), (180, 452806), (185, 440568), (211, 386280), (222, 367140), (232, 351315), (261, 312280), (290, 281052), (296, 275355), (333, 244760), (348, 234210), (360, 226403), (370, 220284), (422, 193140), (435, 187368), (444, 183570), (522, 156140), (555, 146856), (580, 140526), (633, 128760), (666, 122380), (696, 117105), (740, 110142), (844, 96570), (870, 93684), (888, 91785), (1044, 78070), (1055, 77256), (1073, 75960), (1110, 73428), (1160, 70263), (1266, 64380), (1305, 62456), (1332, 61190), (1480, 55071), (1665, 48952), (1688, 48285), (1740, 46842), (1899, 42920), (2088, 39035), (2110, 38628), (2146, 37980), (2220, 36714), (2532, 32190), (2610, 31228), (2664, 30595), (3165, 25752), (3219, 25320), (3330, 24476), (3480, 23421), (3798, 21460), (4220, 19314), (4292, 18990), (4440, 18357), (5064, 16095), (5220, 15614), (5365, 15192), (6119, 13320), (6330, 12876), (6438, 12660), (6660, 12238), (7596, 10730), (7807, 10440), (8440, 9657), (8584, 9495)]