28810900

素因数分解:

$2^2\times 5^2\times {\mathrm{288109}}^1$

素因数の和:288123

約数の個数: 18

約数和(自身を含む): 62519870

約数和(自身を除く): 33708970

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 288109, 576218, 1152436, 1440545, 2881090, 5762180, 7202725, 14405450, 28810900]

約数ペア:

[(1, 28810900), (2, 14405450), (4, 7202725), (5, 5762180), (10, 2881090), (20, 1440545), (25, 1152436), (50, 576218), (100, 288109)]