81368564

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{541}}^1\times {\mathrm{1979}}^1$

素因数の和:2543

約数の個数: 24

約数和(自身を含む): 150242400

約数和(自身を除く): 68873836

約数列:

[1, 2, 4, 19, 38, 76, 541, 1082, 1979, 2164, 3958, 7916, 10279, 20558, 37601, 41116, 75202, 150404, 1070639, 2141278, 4282556, 20342141, 40684282, 81368564]

約数ペア:

[(1, 81368564), (2, 40684282), (4, 20342141), (19, 4282556), (38, 2141278), (76, 1070639), (541, 150404), (1082, 75202), (1979, 41116), (2164, 37601), (3958, 20558), (7916, 10279)]