19891350280

素因数分解:

$2^3\times 5^1\times {\mathrm{497283757}}^1$

素因数の和:497283768

約数の個数: 16

約数和(自身を含む): 44755538220

約数和(自身を除く): 24864187940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 497283757, 994567514, 1989135028, 2486418785, 3978270056, 4972837570, 9945675140, 19891350280]

約数ペア:

[(1, 19891350280), (2, 9945675140), (4, 4972837570), (5, 3978270056), (8, 2486418785), (10, 1989135028), (20, 994567514), (40, 497283757)]