12920656

素因数分解:

$2^4\times 7^1\times {\mathrm{115363}}^1$

素因数の和:115378

約数の個数: 20

約数和(自身を含む): 28610272

約数和(自身を除く): 15689616

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 115363, 230726, 461452, 807541, 922904, 1615082, 1845808, 3230164, 6460328, 12920656]

約数ペア:

[(1, 12920656), (2, 6460328), (4, 3230164), (7, 1845808), (8, 1615082), (14, 922904), (16, 807541), (28, 461452), (56, 230726), (112, 115363)]