2788425

素因数分解:

$3^8\times 5^2\times {\mathrm{17}}^1$

素因数の和:51

約数の個数: 54

約数和(自身を含む): 5491278

約数和(自身を除く): 2702853

約数列:

[1, 3, 5, 9, 15, 17, 25, 27, 45, 51, 75, 81, 85, 135, 153, 225, 243, 255, 405, 425, 459, 675, 729, 765, 1215, 1275, 1377, 2025, 2187, 2295, 3645, 3825, 4131, 6075, 6561, 6885, 10935, 11475, 12393, 18225, 20655, 32805, 34425, 37179, 54675, 61965, 103275, 111537, 164025, 185895, 309825, 557685, 929475, 2788425]

約数ペア:

[(1, 2788425), (3, 929475), (5, 557685), (9, 309825), (15, 185895), (17, 164025), (25, 111537), (27, 103275), (45, 61965), (51, 54675), (75, 37179), (81, 34425), (85, 32805), (135, 20655), (153, 18225), (225, 12393), (243, 11475), (255, 10935), (405, 6885), (425, 6561), (459, 6075), (675, 4131), (729, 3825), (765, 3645), (1215, 2295), (1275, 2187), (1377, 2025)]