81328828

素因数分解:

$2^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{18041}}^1$

素因数の和:18082

約数の個数: 36

約数和(自身を含む): 172770192

約数和(自身を除く): 91441364

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 49, 92, 98, 161, 196, 322, 644, 1127, 2254, 4508, 18041, 36082, 72164, 126287, 252574, 414943, 505148, 829886, 884009, 1659772, 1768018, 2904601, 3536036, 5809202, 11618404, 20332207, 40664414, 81328828]

約数ペア:

[(1, 81328828), (2, 40664414), (4, 20332207), (7, 11618404), (14, 5809202), (23, 3536036), (28, 2904601), (46, 1768018), (49, 1659772), (92, 884009), (98, 829886), (161, 505148), (196, 414943), (322, 252574), (644, 126287), (1127, 72164), (2254, 36082), (4508, 18041)]