81747128

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{3347}}^1$

素因数の和:3467

約数の個数: 32

約数和(自身を含む): 159096960

約数和(自身を除く): 77349832

約数列:

[1, 2, 4, 8, 43, 71, 86, 142, 172, 284, 344, 568, 3053, 3347, 6106, 6694, 12212, 13388, 24424, 26776, 143921, 237637, 287842, 475274, 575684, 950548, 1151368, 1901096, 10218391, 20436782, 40873564, 81747128]

約数ペア:

[(1, 81747128), (2, 40873564), (4, 20436782), (8, 10218391), (43, 1901096), (71, 1151368), (86, 950548), (142, 575684), (172, 475274), (284, 287842), (344, 237637), (568, 143921), (3053, 26776), (3347, 24424), (6106, 13388), (6694, 12212)]