81705312

素因数分解:

$2^5\times 3^2\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{157}}^1$

素因数の和:325

約数の個数: 144

約数和(自身を含む): 253627920

約数和(自身を除く): 171922608

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 32, 36, 39, 48, 52, 72, 78, 96, 104, 117, 139, 144, 156, 157, 208, 234, 278, 288, 312, 314, 416, 417, 468, 471, 556, 624, 628, 834, 936, 942, 1112, 1248, 1251, 1256, 1413, 1668, 1807, 1872, 1884, 2041, 2224, 2502, 2512, 2826, 3336, 3614, 3744, 3768, 4082, 4448, 5004, 5024, 5421, 5652, 6123, 6672, 7228, 7536, 8164, 10008, 10842, 11304, 12246, 13344, 14456, 15072, 16263, 16328, 18369, 20016, 21684, 21823, 22608, 24492, 28912, 32526, 32656, 36738, 40032, 43368, 43646, 45216, 48984, 57824, 65052, 65312, 65469, 73476, 86736, 87292, 97968, 130104, 130938, 146952, 173472, 174584, 195936, 196407, 260208, 261876, 283699, 293904, 349168, 392814, 520416, 523752, 567398, 587808, 698336, 785628, 851097, 1047504, 1134796, 1571256, 1702194, 2095008, 2269592, 2553291, 3142512, 3404388, 4539184, 5106582, 6285024, 6808776, 9078368, 10213164, 13617552, 20426328, 27235104, 40852656, 81705312]

約数ペア:

[(1, 81705312), (2, 40852656), (3, 27235104), (4, 20426328), (6, 13617552), (8, 10213164), (9, 9078368), (12, 6808776), (13, 6285024), (16, 5106582), (18, 4539184), (24, 3404388), (26, 3142512), (32, 2553291), (36, 2269592), (39, 2095008), (48, 1702194), (52, 1571256), (72, 1134796), (78, 1047504), (96, 851097), (104, 785628), (117, 698336), (139, 587808), (144, 567398), (156, 523752), (157, 520416), (208, 392814), (234, 349168), (278, 293904), (288, 283699), (312, 261876), (314, 260208), (416, 196407), (417, 195936), (468, 174584), (471, 173472), (556, 146952), (624, 130938), (628, 130104), (834, 97968), (936, 87292), (942, 86736), (1112, 73476), (1248, 65469), (1251, 65312), (1256, 65052), (1413, 57824), (1668, 48984), (1807, 45216), (1872, 43646), (1884, 43368), (2041, 40032), (2224, 36738), (2502, 32656), (2512, 32526), (2826, 28912), (3336, 24492), (3614, 22608), (3744, 21823), (3768, 21684), (4082, 20016), (4448, 18369), (5004, 16328), (5024, 16263), (5421, 15072), (5652, 14456), (6123, 13344), (6672, 12246), (7228, 11304), (7536, 10842), (8164, 10008)]