80221725

素因数分解:

$3^3\times 5^2\times {\mathrm{17}}^1\times {\mathrm{6991}}^1$

素因数の和:7027

約数の個数: 48

約数和(自身を含む): 156061440

約数和(自身を除く): 75839715

約数列:

[1, 3, 5, 9, 15, 17, 25, 27, 45, 51, 75, 85, 135, 153, 225, 255, 425, 459, 675, 765, 1275, 2295, 3825, 6991, 11475, 20973, 34955, 62919, 104865, 118847, 174775, 188757, 314595, 356541, 524325, 594235, 943785, 1069623, 1572975, 1782705, 2971175, 3208869, 4718925, 5348115, 8913525, 16044345, 26740575, 80221725]

約数ペア:

[(1, 80221725), (3, 26740575), (5, 16044345), (9, 8913525), (15, 5348115), (17, 4718925), (25, 3208869), (27, 2971175), (45, 1782705), (51, 1572975), (75, 1069623), (85, 943785), (135, 594235), (153, 524325), (225, 356541), (255, 314595), (425, 188757), (459, 174775), (675, 118847), (765, 104865), (1275, 62919), (2295, 34955), (3825, 20973), (6991, 11475)]