20650456

素因数分解:

$2^3\times {\mathrm{641}}^1\times {\mathrm{4027}}^1$

素因数の和:4674

約数の個数: 16

約数和(自身を含む): 38789640

約数和(自身を除く): 18139184

約数列:

[1, 2, 4, 8, 641, 1282, 2564, 4027, 5128, 8054, 16108, 32216, 2581307, 5162614, 10325228, 20650456]

約数ペア:

[(1, 20650456), (2, 10325228), (4, 5162614), (8, 2581307), (641, 32216), (1282, 16108), (2564, 8054), (4027, 5128)]