394960

素因数分解:

$2^4\times 5^1\times {\mathrm{4937}}^1$

素因数の和:4950

約数の個数: 20

約数和(自身を含む): 918468

約数和(自身を除く): 523508

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 4937, 9874, 19748, 24685, 39496, 49370, 78992, 98740, 197480, 394960]

約数ペア:

[(1, 394960), (2, 197480), (4, 98740), (5, 78992), (8, 49370), (10, 39496), (16, 24685), (20, 19748), (40, 9874), (80, 4937)]