81990178

素因数分解:

$2^1\times {\mathrm{67}}^1\times {\mathrm{709}}^1\times {\mathrm{863}}^1$

素因数の和:1641

約数の個数: 16

約数和(自身を含む): 125141760

約数和(自身を除く): 43151582

約数列:

[1, 2, 67, 134, 709, 863, 1418, 1726, 47503, 57821, 95006, 115642, 611867, 1223734, 40995089, 81990178]

約数ペア:

[(1, 81990178), (2, 40995089), (67, 1223734), (134, 611867), (709, 115642), (863, 95006), (1418, 57821), (1726, 47503)]