19312660

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{6947}}^1$

素因数の和:7095

約数の個数: 24

約数和(自身を含む): 40854240

約数和(自身を除く): 21541580

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 6947, 13894, 27788, 34735, 69470, 138940, 965633, 1931266, 3862532, 4828165, 9656330, 19312660]

約数ペア:

[(1, 19312660), (2, 9656330), (4, 4828165), (5, 3862532), (10, 1931266), (20, 965633), (139, 138940), (278, 69470), (556, 34735), (695, 27788), (1390, 13894), (2780, 6947)]