79852880

素因数分解:

$2^4\times 5^1\times {\mathrm{998161}}^1$

素因数の和:998174

約数の個数: 20

約数和(自身を含む): 185658132

約数和(自身を除く): 105805252

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 998161, 1996322, 3992644, 4990805, 7985288, 9981610, 15970576, 19963220, 39926440, 79852880]

約数ペア:

[(1, 79852880), (2, 39926440), (4, 19963220), (5, 15970576), (8, 9981610), (10, 7985288), (16, 4990805), (20, 3992644), (40, 1996322), (80, 998161)]