12820144

素因数分解:

$2^4\times {\mathrm{109}}^1\times {\mathrm{7351}}^1$

素因数の和:7468

約数の個数: 20

約数和(自身を含む): 25070320

約数和(自身を除く): 12250176

約数列:

[1, 2, 4, 8, 16, 109, 218, 436, 872, 1744, 7351, 14702, 29404, 58808, 117616, 801259, 1602518, 3205036, 6410072, 12820144]

約数ペア:

[(1, 12820144), (2, 6410072), (4, 3205036), (8, 1602518), (16, 801259), (109, 117616), (218, 58808), (436, 29404), (872, 14702), (1744, 7351)]