81820032

素因数分解:

$2^7\times 3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{499}}^1$

素因数の和:584

約数の個数: 128

約数和(自身を含む): 252960000

約数和(自身を除く): 171139968

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 61, 64, 84, 96, 112, 122, 128, 168, 183, 192, 224, 244, 336, 366, 384, 427, 448, 488, 499, 672, 732, 854, 896, 976, 998, 1281, 1344, 1464, 1497, 1708, 1952, 1996, 2562, 2688, 2928, 2994, 3416, 3493, 3904, 3992, 5124, 5856, 5988, 6832, 6986, 7808, 7984, 10248, 10479, 11712, 11976, 13664, 13972, 15968, 20496, 20958, 23424, 23952, 27328, 27944, 30439, 31936, 40992, 41916, 47904, 54656, 55888, 60878, 63872, 81984, 83832, 91317, 95808, 111776, 121756, 163968, 167664, 182634, 191616, 213073, 223552, 243512, 335328, 365268, 426146, 447104, 487024, 639219, 670656, 730536, 852292, 974048, 1278438, 1341312, 1461072, 1704584, 1948096, 2556876, 2922144, 3409168, 3896192, 5113752, 5844288, 6818336, 10227504, 11688576, 13636672, 20455008, 27273344, 40910016, 81820032]

約数ペア:

[(1, 81820032), (2, 40910016), (3, 27273344), (4, 20455008), (6, 13636672), (7, 11688576), (8, 10227504), (12, 6818336), (14, 5844288), (16, 5113752), (21, 3896192), (24, 3409168), (28, 2922144), (32, 2556876), (42, 1948096), (48, 1704584), (56, 1461072), (61, 1341312), (64, 1278438), (84, 974048), (96, 852292), (112, 730536), (122, 670656), (128, 639219), (168, 487024), (183, 447104), (192, 426146), (224, 365268), (244, 335328), (336, 243512), (366, 223552), (384, 213073), (427, 191616), (448, 182634), (488, 167664), (499, 163968), (672, 121756), (732, 111776), (854, 95808), (896, 91317), (976, 83832), (998, 81984), (1281, 63872), (1344, 60878), (1464, 55888), (1497, 54656), (1708, 47904), (1952, 41916), (1996, 40992), (2562, 31936), (2688, 30439), (2928, 27944), (2994, 27328), (3416, 23952), (3493, 23424), (3904, 20958), (3992, 20496), (5124, 15968), (5856, 13972), (5988, 13664), (6832, 11976), (6986, 11712), (7808, 10479), (7984, 10248)]