25720575

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{20173}}^1$

素因数の和:20203

約数の個数: 24

約数和(自身を含む): 45028368

約数和(自身を除く): 19307793

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1275, 20173, 60519, 100865, 302595, 342941, 504325, 1028823, 1512975, 1714705, 5144115, 8573525, 25720575]

約数ペア:

[(1, 25720575), (3, 8573525), (5, 5144115), (15, 1714705), (17, 1512975), (25, 1028823), (51, 504325), (75, 342941), (85, 302595), (255, 100865), (425, 60519), (1275, 20173)]