20098900

素因数分解:

$2^2\times 5^2\times {\mathrm{200989}}^1$

素因数の和:201003

約数の個数: 18

約数和(自身を含む): 43614830

約数和(自身を除く): 23515930

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 200989, 401978, 803956, 1004945, 2009890, 4019780, 5024725, 10049450, 20098900]

約数ペア:

[(1, 20098900), (2, 10049450), (4, 5024725), (5, 4019780), (10, 2009890), (20, 1004945), (25, 803956), (50, 401978), (100, 200989)]