19290820

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{8849}}^1$

素因数の和:8967

約数の個数: 24

約数和(自身を含む): 40887000

約数和(自身を除く): 21596180

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 8849, 17698, 35396, 44245, 88490, 176980, 964541, 1929082, 3858164, 4822705, 9645410, 19290820]

約数ペア:

[(1, 19290820), (2, 9645410), (4, 4822705), (5, 3858164), (10, 1929082), (20, 964541), (109, 176980), (218, 88490), (436, 44245), (545, 35396), (1090, 17698), (2180, 8849)]