20380940

素因数分解:

$2^2\times 5^1\times {\mathrm{179}}^1\times {\mathrm{5693}}^1$

素因数の和:5881

約数の個数: 24

約数和(自身を含む): 43046640

約数和(自身を除く): 22665700

約数列:

[1, 2, 4, 5, 10, 20, 179, 358, 716, 895, 1790, 3580, 5693, 11386, 22772, 28465, 56930, 113860, 1019047, 2038094, 4076188, 5095235, 10190470, 20380940]

約数ペア:

[(1, 20380940), (2, 10190470), (4, 5095235), (5, 4076188), (10, 2038094), (20, 1019047), (179, 113860), (358, 56930), (716, 28465), (895, 22772), (1790, 11386), (3580, 5693)]