28809790

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{26431}}^1$

素因数の和:26547

約数の個数: 16

約数和(自身を含む): 52335360

約数和(自身を除く): 23525570

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 26431, 52862, 132155, 264310, 2880979, 5761958, 14404895, 28809790]

約数ペア:

[(1, 28809790), (2, 14404895), (5, 5761958), (10, 2880979), (109, 264310), (218, 132155), (545, 52862), (1090, 26431)]