28000090

素因数分解:

$2^1\times 5^1\times {\mathrm{509}}^1\times {\mathrm{5501}}^1$

素因数の和:6017

約数の個数: 16

約数和(自身を含む): 50508360

約数和(自身を除く): 22508270

約数列:

[1, 2, 5, 10, 509, 1018, 2545, 5090, 5501, 11002, 27505, 55010, 2800009, 5600018, 14000045, 28000090]

約数ペア:

[(1, 28000090), (2, 14000045), (5, 5600018), (10, 2800009), (509, 55010), (1018, 27505), (2545, 11002), (5090, 5501)]