56831540

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{20443}}^1$

素因数の和:20591

約数の個数: 24

約数和(自身を含む): 120210720

約数和(自身を除く): 63379180

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 20443, 40886, 81772, 102215, 204430, 408860, 2841577, 5683154, 11366308, 14207885, 28415770, 56831540]

約数ペア:

[(1, 56831540), (2, 28415770), (4, 14207885), (5, 11366308), (10, 5683154), (20, 2841577), (139, 408860), (278, 204430), (556, 102215), (695, 81772), (1390, 40886), (2780, 20443)]