81966968

素因数分解:

$2^3\times {\mathrm{389}}^1\times {\mathrm{26339}}^1$

素因数の和:26734

約数の個数: 16

約数和(自身を含む): 154089000

約数和(自身を除く): 72122032

約数列:

[1, 2, 4, 8, 389, 778, 1556, 3112, 26339, 52678, 105356, 210712, 10245871, 20491742, 40983484, 81966968]

約数ペア:

[(1, 81966968), (2, 40983484), (4, 20491742), (8, 10245871), (389, 210712), (778, 105356), (1556, 52678), (3112, 26339)]