28864725

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{22639}}^1$

素因数の和:22669

約数の個数: 24

約数和(自身を含む): 50532480

約数和(自身を除く): 21667755

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1275, 22639, 67917, 113195, 339585, 384863, 565975, 1154589, 1697925, 1924315, 5772945, 9621575, 28864725]

約数ペア:

[(1, 28864725), (3, 9621575), (5, 5772945), (15, 1924315), (17, 1697925), (25, 1154589), (51, 565975), (75, 384863), (85, 339585), (255, 113195), (425, 67917), (1275, 22639)]