20437540

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53783}}^1$

素因数の和:53811

約数の個数: 24

約数和(自身を含む): 45178560

約数和(自身を除く): 24741020

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 53783, 107566, 215132, 268915, 537830, 1021877, 1075660, 2043754, 4087508, 5109385, 10218770, 20437540]

約数ペア:

[(1, 20437540), (2, 10218770), (4, 5109385), (5, 4087508), (10, 2043754), (19, 1075660), (20, 1021877), (38, 537830), (76, 268915), (95, 215132), (190, 107566), (380, 53783)]