19521080

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{4561}}^1$

素因数の和:4679

約数の個数: 32

約数和(自身を含む): 44342640

約数和(自身を除く): 24821560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 214, 428, 535, 856, 1070, 2140, 4280, 4561, 9122, 18244, 22805, 36488, 45610, 91220, 182440, 488027, 976054, 1952108, 2440135, 3904216, 4880270, 9760540, 19521080]

約数ペア:

[(1, 19521080), (2, 9760540), (4, 4880270), (5, 3904216), (8, 2440135), (10, 1952108), (20, 976054), (40, 488027), (107, 182440), (214, 91220), (428, 45610), (535, 36488), (856, 22805), (1070, 18244), (2140, 9122), (4280, 4561)]