1980356

素因数分解:

$2^2\times 7^1\times {\mathrm{107}}^1\times {\mathrm{661}}^1$

素因数の和:779

約数の個数: 24

約数和(自身を含む): 4003776

約数和(自身を除く): 2023420

約数列:

[1, 2, 4, 7, 14, 28, 107, 214, 428, 661, 749, 1322, 1498, 2644, 2996, 4627, 9254, 18508, 70727, 141454, 282908, 495089, 990178, 1980356]

約数ペア:

[(1, 1980356), (2, 990178), (4, 495089), (7, 282908), (14, 141454), (28, 70727), (107, 18508), (214, 9254), (428, 4627), (661, 2996), (749, 2644), (1322, 1498)]