18477820

素因数分解:

$2^2\times 5^1\times {\mathrm{193}}^1\times {\mathrm{4787}}^1$

素因数の和:4989

約数の個数: 24

約数和(自身を含む): 39012624

約数和(自身を除く): 20534804

約数列:

[1, 2, 4, 5, 10, 20, 193, 386, 772, 965, 1930, 3860, 4787, 9574, 19148, 23935, 47870, 95740, 923891, 1847782, 3695564, 4619455, 9238910, 18477820]

約数ペア:

[(1, 18477820), (2, 9238910), (4, 4619455), (5, 3695564), (10, 1847782), (20, 923891), (193, 95740), (386, 47870), (772, 23935), (965, 19148), (1930, 9574), (3860, 4787)]