78945080

素因数分解:

$2^3\times 5^1\times {\mathrm{1973627}}^1$

素因数の和:1973638

約数の個数: 16

約数和(自身を含む): 177626520

約数和(自身を除く): 98681440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1973627, 3947254, 7894508, 9868135, 15789016, 19736270, 39472540, 78945080]

約数ペア:

[(1, 78945080), (2, 39472540), (4, 19736270), (5, 15789016), (8, 9868135), (10, 7894508), (20, 3947254), (40, 1973627)]