78006440

素因数分解:

$2^3\times 5^1\times {\mathrm{1950161}}^1$

素因数の和:1950172

約数の個数: 16

約数和(自身を含む): 175514580

約数和(自身を除く): 97508140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1950161, 3900322, 7800644, 9750805, 15601288, 19501610, 39003220, 78006440]

約数ペア:

[(1, 78006440), (2, 39003220), (4, 19501610), (5, 15601288), (8, 9750805), (10, 7800644), (20, 3900322), (40, 1950161)]