20845810

素因数分解:

$2^1\times 5^1\times {\mathrm{1249}}^1\times {\mathrm{1669}}^1$

素因数の和:2925

約数の個数: 16

約数和(自身を含む): 37575000

約数和(自身を除く): 16729190

約数列:

[1, 2, 5, 10, 1249, 1669, 2498, 3338, 6245, 8345, 12490, 16690, 2084581, 4169162, 10422905, 20845810]

約数ペア:

[(1, 20845810), (2, 10422905), (5, 4169162), (10, 2084581), (1249, 16690), (1669, 12490), (2498, 8345), (3338, 6245)]