121520656

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{399739}}^1$

素因数の和:399766

約数の個数: 20

約数和(自身を含む): 247838800

約数和(自身を除く): 126318144

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 399739, 799478, 1598956, 3197912, 6395824, 7595041, 15190082, 30380164, 60760328, 121520656]

約数ペア:

[(1, 121520656), (2, 60760328), (4, 30380164), (8, 15190082), (16, 7595041), (19, 6395824), (38, 3197912), (76, 1598956), (152, 799478), (304, 399739)]