81581760

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2179}}^1$

素因数の和:2215

約数の個数: 168

約数和(自身を含む): 302331120

約数和(自身を除く): 220749360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 32, 36, 39, 40, 45, 48, 52, 60, 64, 65, 72, 78, 80, 90, 96, 104, 117, 120, 130, 144, 156, 160, 180, 192, 195, 208, 234, 240, 260, 288, 312, 320, 360, 390, 416, 468, 480, 520, 576, 585, 624, 720, 780, 832, 936, 960, 1040, 1170, 1248, 1440, 1560, 1872, 2080, 2179, 2340, 2496, 2880, 3120, 3744, 4160, 4358, 4680, 6240, 6537, 7488, 8716, 9360, 10895, 12480, 13074, 17432, 18720, 19611, 21790, 26148, 28327, 32685, 34864, 37440, 39222, 43580, 52296, 56654, 65370, 69728, 78444, 84981, 87160, 98055, 104592, 113308, 130740, 139456, 141635, 156888, 169962, 174320, 196110, 209184, 226616, 254943, 261480, 283270, 313776, 339924, 348640, 392220, 418368, 424905, 453232, 509886, 522960, 566540, 627552, 679848, 697280, 784440, 849810, 906464, 1019772, 1045920, 1133080, 1255104, 1274715, 1359696, 1568880, 1699620, 1812928, 2039544, 2091840, 2266160, 2549430, 2719392, 3137760, 3399240, 4079088, 4532320, 5098860, 5438784, 6275520, 6798480, 8158176, 9064640, 10197720, 13596960, 16316352, 20395440, 27193920, 40790880, 81581760]

約数ペア:

[(1, 81581760), (2, 40790880), (3, 27193920), (4, 20395440), (5, 16316352), (6, 13596960), (8, 10197720), (9, 9064640), (10, 8158176), (12, 6798480), (13, 6275520), (15, 5438784), (16, 5098860), (18, 4532320), (20, 4079088), (24, 3399240), (26, 3137760), (30, 2719392), (32, 2549430), (36, 2266160), (39, 2091840), (40, 2039544), (45, 1812928), (48, 1699620), (52, 1568880), (60, 1359696), (64, 1274715), (65, 1255104), (72, 1133080), (78, 1045920), (80, 1019772), (90, 906464), (96, 849810), (104, 784440), (117, 697280), (120, 679848), (130, 627552), (144, 566540), (156, 522960), (160, 509886), (180, 453232), (192, 424905), (195, 418368), (208, 392220), (234, 348640), (240, 339924), (260, 313776), (288, 283270), (312, 261480), (320, 254943), (360, 226616), (390, 209184), (416, 196110), (468, 174320), (480, 169962), (520, 156888), (576, 141635), (585, 139456), (624, 130740), (720, 113308), (780, 104592), (832, 98055), (936, 87160), (960, 84981), (1040, 78444), (1170, 69728), (1248, 65370), (1440, 56654), (1560, 52296), (1872, 43580), (2080, 39222), (2179, 37440), (2340, 34864), (2496, 32685), (2880, 28327), (3120, 26148), (3744, 21790), (4160, 19611), (4358, 18720), (4680, 17432), (6240, 13074), (6537, 12480), (7488, 10895), (8716, 9360)]