18999620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{49999}}^1$

素因数の和:50027

約数の個数: 24

約数和(自身を含む): 42000000

約数和(自身を除く): 23000380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 49999, 99998, 199996, 249995, 499990, 949981, 999980, 1899962, 3799924, 4749905, 9499810, 18999620]

約数ペア:

[(1, 18999620), (2, 9499810), (4, 4749905), (5, 3799924), (10, 1899962), (19, 999980), (20, 949981), (38, 499990), (76, 249995), (95, 199996), (190, 99998), (380, 49999)]