78825904

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{69389}}^1$

素因数の和:69468

約数の個数: 20

約数和(自身を含む): 154878480

約数和(自身を除く): 76052576

約数列:

[1, 2, 4, 8, 16, 71, 142, 284, 568, 1136, 69389, 138778, 277556, 555112, 1110224, 4926619, 9853238, 19706476, 39412952, 78825904]

約数ペア:

[(1, 78825904), (2, 39412952), (4, 19706476), (8, 9853238), (16, 4926619), (71, 1110224), (142, 555112), (284, 277556), (568, 138778), (1136, 69389)]