55222280

素因数分解:

$2^3\times 5^1\times {\mathrm{1380557}}^1$

素因数の和:1380568

約数の個数: 16

約数和(自身を含む): 124250220

約数和(自身を除く): 69027940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1380557, 2761114, 5522228, 6902785, 11044456, 13805570, 27611140, 55222280]

約数ペア:

[(1, 55222280), (2, 27611140), (4, 13805570), (5, 11044456), (8, 6902785), (10, 5522228), (20, 2761114), (40, 1380557)]