12870416

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1439}}^1$

素因数の和:1503

約数の個数: 40

約数和(自身を含む): 27498240

約数和(自身を除く): 14627824

約数列:

[1, 2, 4, 8, 13, 16, 26, 43, 52, 86, 104, 172, 208, 344, 559, 688, 1118, 1439, 2236, 2878, 4472, 5756, 8944, 11512, 18707, 23024, 37414, 61877, 74828, 123754, 149656, 247508, 299312, 495016, 804401, 990032, 1608802, 3217604, 6435208, 12870416]

約数ペア:

[(1, 12870416), (2, 6435208), (4, 3217604), (8, 1608802), (13, 990032), (16, 804401), (26, 495016), (43, 299312), (52, 247508), (86, 149656), (104, 123754), (172, 74828), (208, 61877), (344, 37414), (559, 23024), (688, 18707), (1118, 11512), (1439, 8944), (2236, 5756), (2878, 4472)]