81342170

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{89387}}^1$

素因数の和:89414

約数の個数: 32

約数和(自身を含む): 180206208

約数和(自身を除く): 98864038

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 89387, 178774, 446935, 625709, 893870, 1162031, 1251418, 2324062, 3128545, 5810155, 6257090, 8134217, 11620310, 16268434, 40671085, 81342170]

約数ペア:

[(1, 81342170), (2, 40671085), (5, 16268434), (7, 11620310), (10, 8134217), (13, 6257090), (14, 5810155), (26, 3128545), (35, 2324062), (65, 1251418), (70, 1162031), (91, 893870), (130, 625709), (182, 446935), (455, 178774), (910, 89387)]