18028575

素因数分解:

$3^4\times 5^2\times {\mathrm{29}}^1\times {\mathrm{307}}^1$

素因数の和:358

約数の個数: 60

約数和(自身を含む): 34659240

約数和(自身を除く): 16630665

約数列:

[1, 3, 5, 9, 15, 25, 27, 29, 45, 75, 81, 87, 135, 145, 225, 261, 307, 405, 435, 675, 725, 783, 921, 1305, 1535, 2025, 2175, 2349, 2763, 3915, 4605, 6525, 7675, 8289, 8903, 11745, 13815, 19575, 23025, 24867, 26709, 41445, 44515, 58725, 69075, 80127, 124335, 133545, 207225, 222575, 240381, 400635, 621675, 667725, 721143, 1201905, 2003175, 3605715, 6009525, 18028575]

約数ペア:

[(1, 18028575), (3, 6009525), (5, 3605715), (9, 2003175), (15, 1201905), (25, 721143), (27, 667725), (29, 621675), (45, 400635), (75, 240381), (81, 222575), (87, 207225), (135, 133545), (145, 124335), (225, 80127), (261, 69075), (307, 58725), (405, 44515), (435, 41445), (675, 26709), (725, 24867), (783, 23025), (921, 19575), (1305, 13815), (1535, 11745), (2025, 8903), (2175, 8289), (2349, 7675), (2763, 6525), (3915, 4605)]