81757768

素因数分解:

$2^3\times {\mathrm{661}}^1\times {\mathrm{15461}}^1$

素因数の和:16128

約数の個数: 16

約数和(自身を含む): 153537660

約数和(自身を除く): 71779892

約数列:

[1, 2, 4, 8, 661, 1322, 2644, 5288, 15461, 30922, 61844, 123688, 10219721, 20439442, 40878884, 81757768]

約数ペア:

[(1, 81757768), (2, 40878884), (4, 20439442), (8, 10219721), (661, 123688), (1322, 61844), (2644, 30922), (5288, 15461)]