78771080

素因数分解:

$2^3\times 5^1\times {\mathrm{1969277}}^1$

素因数の和:1969288

約数の個数: 16

約数和(自身を含む): 177235020

約数和(自身を除く): 98463940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1969277, 3938554, 7877108, 9846385, 15754216, 19692770, 39385540, 78771080]

約数ペア:

[(1, 78771080), (2, 39385540), (4, 19692770), (5, 15754216), (8, 9846385), (10, 7877108), (20, 3938554), (40, 1969277)]