18970960

素因数分解:

$2^4\times 5^1\times {\mathrm{237137}}^1$

素因数の和:237150

約数の個数: 20

約数和(自身を含む): 44107668

約数和(自身を除く): 25136708

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 237137, 474274, 948548, 1185685, 1897096, 2371370, 3794192, 4742740, 9485480, 18970960]

約数ペア:

[(1, 18970960), (2, 9485480), (4, 4742740), (5, 3794192), (8, 2371370), (10, 1897096), (16, 1185685), (20, 948548), (40, 474274), (80, 237137)]