80111960

素因数分解:

$2^3\times 5^1\times {\mathrm{2002799}}^1$

素因数の和:2002810

約数の個数: 16

約数和(自身を含む): 180252000

約数和(自身を除く): 100140040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2002799, 4005598, 8011196, 10013995, 16022392, 20027990, 40055980, 80111960]

約数ペア:

[(1, 80111960), (2, 40055980), (4, 20027990), (5, 16022392), (8, 10013995), (10, 8011196), (20, 4005598), (40, 2002799)]