81267854956

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{1069313881}}^1$

素因数の和:1069313904

約数の個数: 12

約数和(自身を含む): 149703943480

約数和(自身を除く): 68436088524

約数列:

[1, 2, 4, 19, 38, 76, 1069313881, 2138627762, 4277255524, 20316963739, 40633927478, 81267854956]

約数ペア:

[(1, 81267854956), (2, 40633927478), (4, 20316963739), (19, 4277255524), (38, 2138627762), (76, 1069313881)]