28304225

素因数分解:

$5^2\times {\mathrm{89}}^1\times {\mathrm{12721}}^1$

素因数の和:12820

約数の個数: 12

約数和(自身を含む): 35494380

約数和(自身を除く): 7190155

約数列:

[1, 5, 25, 89, 445, 2225, 12721, 63605, 318025, 1132169, 5660845, 28304225]

約数ペア:

[(1, 28304225), (5, 5660845), (25, 1132169), (89, 318025), (445, 63605), (2225, 12721)]