28120335

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{39887}}^1$

素因数の和:39942

約数の個数: 16

約数和(自身を含む): 45950976

約数和(自身を除く): 17830641

約数列:

[1, 3, 5, 15, 47, 141, 235, 705, 39887, 119661, 199435, 598305, 1874689, 5624067, 9373445, 28120335]

約数ペア:

[(1, 28120335), (3, 9373445), (5, 5624067), (15, 1874689), (47, 598305), (141, 199435), (235, 119661), (705, 39887)]