81666306

素因数分解:

$2^1\times 3^4\times {\mathrm{331}}^1\times {\mathrm{1523}}^1$

素因数の和:1868

約数の個数: 40

約数和(自身を含む): 183666384

約数和(自身を除く): 102000078

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 331, 662, 993, 1523, 1986, 2979, 3046, 4569, 5958, 8937, 9138, 13707, 17874, 26811, 27414, 41121, 53622, 82242, 123363, 246726, 504113, 1008226, 1512339, 3024678, 4537017, 9074034, 13611051, 27222102, 40833153, 81666306]

約数ペア:

[(1, 81666306), (2, 40833153), (3, 27222102), (6, 13611051), (9, 9074034), (18, 4537017), (27, 3024678), (54, 1512339), (81, 1008226), (162, 504113), (331, 246726), (662, 123363), (993, 82242), (1523, 53622), (1986, 41121), (2979, 27414), (3046, 26811), (4569, 17874), (5958, 13707), (8937, 9138)]