28403175

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{22277}}^1$

素因数の和:22307

約数の個数: 24

約数和(自身を含む): 49724496

約数和(自身を除く): 21321321

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1275, 22277, 66831, 111385, 334155, 378709, 556925, 1136127, 1670775, 1893545, 5680635, 9467725, 28403175]

約数ペア:

[(1, 28403175), (3, 9467725), (5, 5680635), (15, 1893545), (17, 1670775), (25, 1136127), (51, 556925), (75, 378709), (85, 334155), (255, 111385), (425, 66831), (1275, 22277)]