81185804

素因数分解:

$2^2\times 7^1\times {\mathrm{1279}}^1\times {\mathrm{2267}}^1$

素因数の和:3557

約数の個数: 24

約数和(自身を含む): 162570240

約数和(自身を除く): 81384436

約数列:

[1, 2, 4, 7, 14, 28, 1279, 2267, 2558, 4534, 5116, 8953, 9068, 15869, 17906, 31738, 35812, 63476, 2899493, 5798986, 11597972, 20296451, 40592902, 81185804]

約数ペア:

[(1, 81185804), (2, 40592902), (4, 20296451), (7, 11597972), (14, 5798986), (28, 2899493), (1279, 63476), (2267, 35812), (2558, 31738), (4534, 17906), (5116, 15869), (8953, 9068)]