18786140

素因数分解:

$2^2\times 5^1\times {\mathrm{277}}^1\times {\mathrm{3391}}^1$

素因数の和:3677

約数の個数: 24

約数和(自身を含む): 39604992

約数和(自身を除く): 20818852

約数列:

[1, 2, 4, 5, 10, 20, 277, 554, 1108, 1385, 2770, 3391, 5540, 6782, 13564, 16955, 33910, 67820, 939307, 1878614, 3757228, 4696535, 9393070, 18786140]

約数ペア:

[(1, 18786140), (2, 9393070), (4, 4696535), (5, 3757228), (10, 1878614), (20, 939307), (277, 67820), (554, 33910), (1108, 16955), (1385, 13564), (2770, 6782), (3391, 5540)]