204023780

素因数分解:

$2^2\times 5^1\times {\mathrm{487}}^1\times {\mathrm{20947}}^1$

素因数の和:21443

約数の個数: 24

約数和(自身を含む): 429350208

約数和(自身を除く): 225326428

約数列:

[1, 2, 4, 5, 10, 20, 487, 974, 1948, 2435, 4870, 9740, 20947, 41894, 83788, 104735, 209470, 418940, 10201189, 20402378, 40804756, 51005945, 102011890, 204023780]

約数ペア:

[(1, 204023780), (2, 102011890), (4, 51005945), (5, 40804756), (10, 20402378), (20, 10201189), (487, 418940), (974, 209470), (1948, 104735), (2435, 83788), (4870, 41894), (9740, 20947)]