19940936

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{80407}}^1$

素因数の和:80444

約数の個数: 16

約数和(自身を含む): 38595840

約数和(自身を除く): 18654904

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 80407, 160814, 321628, 643256, 2492617, 4985234, 9970468, 19940936]

約数ペア:

[(1, 19940936), (2, 9970468), (4, 4985234), (8, 2492617), (31, 643256), (62, 321628), (124, 160814), (248, 80407)]