20488360

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{4787}}^1$

素因数の和:4905

約数の個数: 32

約数和(自身を含む): 46539360

約数和(自身を除く): 26051000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 214, 428, 535, 856, 1070, 2140, 4280, 4787, 9574, 19148, 23935, 38296, 47870, 95740, 191480, 512209, 1024418, 2048836, 2561045, 4097672, 5122090, 10244180, 20488360]

約数ペア:

[(1, 20488360), (2, 10244180), (4, 5122090), (5, 4097672), (8, 2561045), (10, 2048836), (20, 1024418), (40, 512209), (107, 191480), (214, 95740), (428, 47870), (535, 38296), (856, 23935), (1070, 19148), (2140, 9574), (4280, 4787)]