64861810576

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{213361219}}^1$

素因数の和:213361246

約数の個数: 20

約数和(自身を含む): 132283956400

約数和(自身を除く): 67422145824

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 213361219, 426722438, 853444876, 1706889752, 3413779504, 4053863161, 8107726322, 16215452644, 32430905288, 64861810576]

約数ペア:

[(1, 64861810576), (2, 32430905288), (4, 16215452644), (8, 8107726322), (16, 4053863161), (19, 3413779504), (38, 1706889752), (76, 853444876), (152, 426722438), (304, 213361219)]