81939988

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{2579}}^1$

素因数の和:2656

約数の個数: 36

約数和(自身を含む): 158639040

約数和(自身を除く): 76699052

約数列:

[1, 2, 4, 13, 26, 47, 52, 94, 169, 188, 338, 611, 676, 1222, 2444, 2579, 5158, 7943, 10316, 15886, 31772, 33527, 67054, 121213, 134108, 242426, 435851, 484852, 871702, 1575769, 1743404, 3151538, 6303076, 20484997, 40969994, 81939988]

約数ペア:

[(1, 81939988), (2, 40969994), (4, 20484997), (13, 6303076), (26, 3151538), (47, 1743404), (52, 1575769), (94, 871702), (169, 484852), (188, 435851), (338, 242426), (611, 134108), (676, 121213), (1222, 67054), (2444, 33527), (2579, 31772), (5158, 15886), (7943, 10316)]