28388656

素因数分解:

$2^4\times {\mathrm{83}}^1\times {\mathrm{21377}}^1$

素因数の和:21468

約数の個数: 20

約数和(自身を含む): 55668312

約数和(自身を除く): 27279656

約数列:

[1, 2, 4, 8, 16, 83, 166, 332, 664, 1328, 21377, 42754, 85508, 171016, 342032, 1774291, 3548582, 7097164, 14194328, 28388656]

約数ペア:

[(1, 28388656), (2, 14194328), (4, 7097164), (8, 3548582), (16, 1774291), (83, 342032), (166, 171016), (332, 85508), (664, 42754), (1328, 21377)]