28252725

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{22159}}^1$

素因数の和:22189

約数の個数: 24

約数和(自身を含む): 49461120

約数和(自身を除く): 21208395

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1275, 22159, 66477, 110795, 332385, 376703, 553975, 1130109, 1661925, 1883515, 5650545, 9417575, 28252725]

約数ペア:

[(1, 28252725), (3, 9417575), (5, 5650545), (15, 1883515), (17, 1661925), (25, 1130109), (51, 553975), (75, 376703), (85, 332385), (255, 110795), (425, 66477), (1275, 22159)]