81317816

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{2437}}^1$

素因数の和:2583

約数の個数: 32

約数和(自身を含む): 157689840

約数和(自身を除く): 76372024

約数列:

[1, 2, 4, 8, 43, 86, 97, 172, 194, 344, 388, 776, 2437, 4171, 4874, 8342, 9748, 16684, 19496, 33368, 104791, 209582, 236389, 419164, 472778, 838328, 945556, 1891112, 10164727, 20329454, 40658908, 81317816]

約数ペア:

[(1, 81317816), (2, 40658908), (4, 20329454), (8, 10164727), (43, 1891112), (86, 945556), (97, 838328), (172, 472778), (194, 419164), (344, 236389), (388, 209582), (776, 104791), (2437, 33368), (4171, 19496), (4874, 16684), (8342, 9748)]