64861744

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{213361}}^1$

素因数の和:213388

約数の個数: 20

約数和(自身を含む): 132284440

約数和(自身を除く): 67422696

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 213361, 426722, 853444, 1706888, 3413776, 4053859, 8107718, 16215436, 32430872, 64861744]

約数ペア:

[(1, 64861744), (2, 32430872), (4, 16215436), (8, 8107718), (16, 4053859), (19, 3413776), (38, 1706888), (76, 853444), (152, 426722), (304, 213361)]