81466560

素因数分解:

$2^6\times 3^4\times 5^1\times 7^1\times {\mathrm{449}}^1$

素因数の和:485

約数の個数: 280

約数和(自身を含む): 331927200

約数和(自身を除く): 250460640

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 64, 70, 72, 80, 81, 84, 90, 96, 105, 108, 112, 120, 126, 135, 140, 144, 160, 162, 168, 180, 189, 192, 210, 216, 224, 240, 252, 270, 280, 288, 315, 320, 324, 336, 360, 378, 405, 420, 432, 448, 449, 480, 504, 540, 560, 567, 576, 630, 648, 672, 720, 756, 810, 840, 864, 898, 945, 960, 1008, 1080, 1120, 1134, 1260, 1296, 1344, 1347, 1440, 1512, 1620, 1680, 1728, 1796, 1890, 2016, 2160, 2240, 2245, 2268, 2520, 2592, 2694, 2835, 2880, 3024, 3143, 3240, 3360, 3592, 3780, 4032, 4041, 4320, 4490, 4536, 5040, 5184, 5388, 5670, 6048, 6286, 6480, 6720, 6735, 7184, 7560, 8082, 8640, 8980, 9072, 9429, 10080, 10776, 11340, 12096, 12123, 12572, 12960, 13470, 14368, 15120, 15715, 16164, 17960, 18144, 18858, 20160, 20205, 21552, 22680, 24246, 25144, 25920, 26940, 28287, 28736, 30240, 31430, 32328, 35920, 36288, 36369, 37716, 40410, 43104, 45360, 47145, 48492, 50288, 53880, 56574, 60480, 60615, 62860, 64656, 71840, 72738, 75432, 80820, 84861, 86208, 90720, 94290, 96984, 100576, 107760, 113148, 121230, 125720, 129312, 141435, 143680, 145476, 150864, 161640, 169722, 181440, 181845, 188580, 193968, 201152, 215520, 226296, 242460, 251440, 254583, 258624, 282870, 290952, 301728, 323280, 339444, 363690, 377160, 387936, 424305, 431040, 452592, 484920, 502880, 509166, 565740, 581904, 603456, 646560, 678888, 727380, 754320, 775872, 848610, 905184, 969840, 1005760, 1018332, 1131480, 1163808, 1272915, 1293120, 1357776, 1454760, 1508640, 1697220, 1810368, 1939680, 2036664, 2262960, 2327616, 2545830, 2715552, 2909520, 3017280, 3394440, 3879360, 4073328, 4525920, 5091660, 5431104, 5819040, 6788880, 8146656, 9051840, 10183320, 11638080, 13577760, 16293312, 20366640, 27155520, 40733280, 81466560]

約数ペア:

[(1, 81466560), (2, 40733280), (3, 27155520), (4, 20366640), (5, 16293312), (6, 13577760), (7, 11638080), (8, 10183320), (9, 9051840), (10, 8146656), (12, 6788880), (14, 5819040), (15, 5431104), (16, 5091660), (18, 4525920), (20, 4073328), (21, 3879360), (24, 3394440), (27, 3017280), (28, 2909520), (30, 2715552), (32, 2545830), (35, 2327616), (36, 2262960), (40, 2036664), (42, 1939680), (45, 1810368), (48, 1697220), (54, 1508640), (56, 1454760), (60, 1357776), (63, 1293120), (64, 1272915), (70, 1163808), (72, 1131480), (80, 1018332), (81, 1005760), (84, 969840), (90, 905184), (96, 848610), (105, 775872), (108, 754320), (112, 727380), (120, 678888), (126, 646560), (135, 603456), (140, 581904), (144, 565740), (160, 509166), (162, 502880), (168, 484920), (180, 452592), (189, 431040), (192, 424305), (210, 387936), (216, 377160), (224, 363690), (240, 339444), (252, 323280), (270, 301728), (280, 290952), (288, 282870), (315, 258624), (320, 254583), (324, 251440), (336, 242460), (360, 226296), (378, 215520), (405, 201152), (420, 193968), (432, 188580), (448, 181845), (449, 181440), (480, 169722), (504, 161640), (540, 150864), (560, 145476), (567, 143680), (576, 141435), (630, 129312), (648, 125720), (672, 121230), (720, 113148), (756, 107760), (810, 100576), (840, 96984), (864, 94290), (898, 90720), (945, 86208), (960, 84861), (1008, 80820), (1080, 75432), (1120, 72738), (1134, 71840), (1260, 64656), (1296, 62860), (1344, 60615), (1347, 60480), (1440, 56574), (1512, 53880), (1620, 50288), (1680, 48492), (1728, 47145), (1796, 45360), (1890, 43104), (2016, 40410), (2160, 37716), (2240, 36369), (2245, 36288), (2268, 35920), (2520, 32328), (2592, 31430), (2694, 30240), (2835, 28736), (2880, 28287), (3024, 26940), (3143, 25920), (3240, 25144), (3360, 24246), (3592, 22680), (3780, 21552), (4032, 20205), (4041, 20160), (4320, 18858), (4490, 18144), (4536, 17960), (5040, 16164), (5184, 15715), (5388, 15120), (5670, 14368), (6048, 13470), (6286, 12960), (6480, 12572), (6720, 12123), (6735, 12096), (7184, 11340), (7560, 10776), (8082, 10080), (8640, 9429), (8980, 9072)]