78072860

素因数分解:

$2^2\times 5^1\times {\mathrm{3903643}}^1$

素因数の和:3903652

約数の個数: 12

約数和(自身を含む): 163953048

約数和(自身を除く): 85880188

約数列:

[1, 2, 4, 5, 10, 20, 3903643, 7807286, 15614572, 19518215, 39036430, 78072860]

約数ペア:

[(1, 78072860), (2, 39036430), (4, 19518215), (5, 15614572), (10, 7807286), (20, 3903643)]