678640016

素因数分解:

$2^4\times {\mathrm{42415001}}^1$

素因数の和:42415009

約数の個数: 10

約数和(自身を含む): 1314865062

約数和(自身を除く): 636225046

約数列:

[1, 2, 4, 8, 16, 42415001, 84830002, 169660004, 339320008, 678640016]

約数ペア:

[(1, 678640016), (2, 339320008), (4, 169660004), (8, 84830002), (16, 42415001)]