11421680

素因数分解:

$2^4\times 5^1\times {\mathrm{142771}}^1$

素因数の和:142784

約数の個数: 20

約数和(自身を含む): 26555592

約数和(自身を除く): 15133912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 142771, 285542, 571084, 713855, 1142168, 1427710, 2284336, 2855420, 5710840, 11421680]

約数ペア:

[(1, 11421680), (2, 5710840), (4, 2855420), (5, 2284336), (8, 1427710), (10, 1142168), (16, 713855), (20, 571084), (40, 285542), (80, 142771)]