28882820

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{13249}}^1$

素因数の和:13367

約数の個数: 24

約数和(自身を含む): 61215000

約数和(自身を除く): 32332180

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 13249, 26498, 52996, 66245, 132490, 264980, 1444141, 2888282, 5776564, 7220705, 14441410, 28882820]

約数ペア:

[(1, 28882820), (2, 14441410), (4, 7220705), (5, 5776564), (10, 2888282), (20, 1444141), (109, 264980), (218, 132490), (436, 66245), (545, 52996), (1090, 26498), (2180, 13249)]