81264176

素因数分解:

$2^4\times 7^1\times {\mathrm{113}}^1\times {\mathrm{6421}}^1$

素因数の和:6549

約数の個数: 40

約数和(自身を含む): 181562784

約数和(自身を除く): 100298608

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 113, 226, 452, 791, 904, 1582, 1808, 3164, 6328, 6421, 12656, 12842, 25684, 44947, 51368, 89894, 102736, 179788, 359576, 719152, 725573, 1451146, 2902292, 5079011, 5804584, 10158022, 11609168, 20316044, 40632088, 81264176]

約数ペア:

[(1, 81264176), (2, 40632088), (4, 20316044), (7, 11609168), (8, 10158022), (14, 5804584), (16, 5079011), (28, 2902292), (56, 1451146), (112, 725573), (113, 719152), (226, 359576), (452, 179788), (791, 102736), (904, 89894), (1582, 51368), (1808, 44947), (3164, 25684), (6328, 12842), (6421, 12656)]