81432556

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{661}}^1\times {\mathrm{1621}}^1$

素因数の和:2305

約数の個数: 24

約数和(自身を含む): 150326960

約数和(自身を除く): 68894404

約数列:

[1, 2, 4, 19, 38, 76, 661, 1322, 1621, 2644, 3242, 6484, 12559, 25118, 30799, 50236, 61598, 123196, 1071481, 2142962, 4285924, 20358139, 40716278, 81432556]

約数ペア:

[(1, 81432556), (2, 40716278), (4, 20358139), (19, 4285924), (38, 2142962), (76, 1071481), (661, 123196), (1322, 61598), (1621, 50236), (2644, 30799), (3242, 25118), (6484, 12559)]