81984385

素因数分解:

$5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{17881}}^1$

素因数の和:18024

約数の個数: 16

約数和(自身を含む): 113300352

約数和(自身を除く): 31315967

約数列:

[1, 5, 7, 35, 131, 655, 917, 4585, 17881, 89405, 125167, 625835, 2342411, 11712055, 16396877, 81984385]

約数ペア:

[(1, 81984385), (5, 16396877), (7, 11712055), (35, 2342411), (131, 625835), (655, 125167), (917, 89405), (4585, 17881)]