55189520

素因数分解:

$2^4\times 5^1\times {\mathrm{689869}}^1$

素因数の和:689882

約数の個数: 20

約数和(自身を含む): 128315820

約数和(自身を除く): 73126300

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 689869, 1379738, 2759476, 3449345, 5518952, 6898690, 11037904, 13797380, 27594760, 55189520]

約数ペア:

[(1, 55189520), (2, 27594760), (4, 13797380), (5, 11037904), (8, 6898690), (10, 5518952), (16, 3449345), (20, 2759476), (40, 1379738), (80, 689869)]