55665640

素因数分解:

$2^3\times 5^1\times {\mathrm{1391641}}^1$

素因数の和:1391652

約数の個数: 16

約数和(自身を含む): 125247780

約数和(自身を除く): 69582140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1391641, 2783282, 5566564, 6958205, 11133128, 13916410, 27832820, 55665640]

約数ペア:

[(1, 55665640), (2, 27832820), (4, 13916410), (5, 11133128), (8, 6958205), (10, 5566564), (20, 2783282), (40, 1391641)]