20201540

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{21491}}^1$

素因数の和:21547

約数の個数: 24

約数和(自身を含む): 43327872

約数和(自身を除く): 23126332

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 21491, 42982, 85964, 107455, 214910, 429820, 1010077, 2020154, 4040308, 5050385, 10100770, 20201540]

約数ペア:

[(1, 20201540), (2, 10100770), (4, 5050385), (5, 4040308), (10, 2020154), (20, 1010077), (47, 429820), (94, 214910), (188, 107455), (235, 85964), (470, 42982), (940, 21491)]