42109425

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{109}}^1$

素因数の和:243

約数の個数: 72

約数和(自身を含む): 81389880

約数和(自身を除く): 39280455

約数列:

[1, 3, 5, 9, 15, 17, 25, 45, 51, 75, 85, 101, 109, 153, 225, 255, 303, 327, 425, 505, 545, 765, 909, 981, 1275, 1515, 1635, 1717, 1853, 2525, 2725, 3825, 4545, 4905, 5151, 5559, 7575, 8175, 8585, 9265, 11009, 15453, 16677, 22725, 24525, 25755, 27795, 33027, 42925, 46325, 55045, 77265, 83385, 99081, 128775, 138975, 165135, 187153, 275225, 386325, 416925, 495405, 561459, 825675, 935765, 1684377, 2477025, 2807295, 4678825, 8421885, 14036475, 42109425]

約数ペア:

[(1, 42109425), (3, 14036475), (5, 8421885), (9, 4678825), (15, 2807295), (17, 2477025), (25, 1684377), (45, 935765), (51, 825675), (75, 561459), (85, 495405), (101, 416925), (109, 386325), (153, 275225), (225, 187153), (255, 165135), (303, 138975), (327, 128775), (425, 99081), (505, 83385), (545, 77265), (765, 55045), (909, 46325), (981, 42925), (1275, 33027), (1515, 27795), (1635, 25755), (1717, 24525), (1853, 22725), (2525, 16677), (2725, 15453), (3825, 11009), (4545, 9265), (4905, 8585), (5151, 8175), (5559, 7575)]