55156280

素因数分解:

$2^3\times 5^1\times {\mathrm{1378907}}^1$

素因数の和:1378918

約数の個数: 16

約数和(自身を含む): 124101720

約数和(自身を除く): 68945440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1378907, 2757814, 5515628, 6894535, 11031256, 13789070, 27578140, 55156280]

約数ペア:

[(1, 55156280), (2, 27578140), (4, 13789070), (5, 11031256), (8, 6894535), (10, 5515628), (20, 2757814), (40, 1378907)]