81623808

素因数分解:

$2^8\times 3^3\times 7^2\times {\mathrm{241}}^1$

素因数の和:280

約数の個数: 216

約数和(自身を含む): 281949360

約数和(自身を除く): 200325552

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 32, 36, 42, 48, 49, 54, 56, 63, 64, 72, 84, 96, 98, 108, 112, 126, 128, 144, 147, 168, 189, 192, 196, 216, 224, 241, 252, 256, 288, 294, 336, 378, 384, 392, 432, 441, 448, 482, 504, 576, 588, 672, 723, 756, 768, 784, 864, 882, 896, 964, 1008, 1152, 1176, 1323, 1344, 1446, 1512, 1568, 1687, 1728, 1764, 1792, 1928, 2016, 2169, 2304, 2352, 2646, 2688, 2892, 3024, 3136, 3374, 3456, 3528, 3856, 4032, 4338, 4704, 5061, 5292, 5376, 5784, 6048, 6272, 6507, 6748, 6912, 7056, 7712, 8064, 8676, 9408, 10122, 10584, 11568, 11809, 12096, 12544, 13014, 13496, 14112, 15183, 15424, 16128, 17352, 18816, 20244, 21168, 23136, 23618, 24192, 26028, 26992, 28224, 30366, 30848, 34704, 35427, 37632, 40488, 42336, 45549, 46272, 47236, 48384, 52056, 53984, 56448, 60732, 61696, 69408, 70854, 80976, 84672, 91098, 92544, 94472, 104112, 106281, 107968, 112896, 121464, 138816, 141708, 161952, 169344, 182196, 185088, 188944, 208224, 212562, 215936, 242928, 277632, 283416, 318843, 323904, 338688, 364392, 377888, 416448, 425124, 431872, 485856, 555264, 566832, 637686, 647808, 728784, 755776, 832896, 850248, 971712, 1133664, 1275372, 1295616, 1457568, 1511552, 1665792, 1700496, 1943424, 2267328, 2550744, 2915136, 3023104, 3400992, 3886848, 4534656, 5101488, 5830272, 6801984, 9069312, 10202976, 11660544, 13603968, 20405952, 27207936, 40811904, 81623808]

約数ペア:

[(1, 81623808), (2, 40811904), (3, 27207936), (4, 20405952), (6, 13603968), (7, 11660544), (8, 10202976), (9, 9069312), (12, 6801984), (14, 5830272), (16, 5101488), (18, 4534656), (21, 3886848), (24, 3400992), (27, 3023104), (28, 2915136), (32, 2550744), (36, 2267328), (42, 1943424), (48, 1700496), (49, 1665792), (54, 1511552), (56, 1457568), (63, 1295616), (64, 1275372), (72, 1133664), (84, 971712), (96, 850248), (98, 832896), (108, 755776), (112, 728784), (126, 647808), (128, 637686), (144, 566832), (147, 555264), (168, 485856), (189, 431872), (192, 425124), (196, 416448), (216, 377888), (224, 364392), (241, 338688), (252, 323904), (256, 318843), (288, 283416), (294, 277632), (336, 242928), (378, 215936), (384, 212562), (392, 208224), (432, 188944), (441, 185088), (448, 182196), (482, 169344), (504, 161952), (576, 141708), (588, 138816), (672, 121464), (723, 112896), (756, 107968), (768, 106281), (784, 104112), (864, 94472), (882, 92544), (896, 91098), (964, 84672), (1008, 80976), (1152, 70854), (1176, 69408), (1323, 61696), (1344, 60732), (1446, 56448), (1512, 53984), (1568, 52056), (1687, 48384), (1728, 47236), (1764, 46272), (1792, 45549), (1928, 42336), (2016, 40488), (2169, 37632), (2304, 35427), (2352, 34704), (2646, 30848), (2688, 30366), (2892, 28224), (3024, 26992), (3136, 26028), (3374, 24192), (3456, 23618), (3528, 23136), (3856, 21168), (4032, 20244), (4338, 18816), (4704, 17352), (5061, 16128), (5292, 15424), (5376, 15183), (5784, 14112), (6048, 13496), (6272, 13014), (6507, 12544), (6748, 12096), (6912, 11809), (7056, 11568), (7712, 10584), (8064, 10122), (8676, 9408)]