20432385

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{307}}^1$

素因数の和:367

約数の個数: 64

約数和(自身を含む): 39916800

約数和(自身を除く): 19484415

約数列:

[1, 3, 5, 9, 15, 17, 27, 29, 45, 51, 85, 87, 135, 145, 153, 255, 261, 307, 435, 459, 493, 765, 783, 921, 1305, 1479, 1535, 2295, 2465, 2763, 3915, 4437, 4605, 5219, 7395, 8289, 8903, 13311, 13815, 15657, 22185, 26095, 26709, 41445, 44515, 46971, 66555, 78285, 80127, 133545, 140913, 151351, 234855, 240381, 400635, 454053, 704565, 756755, 1201905, 1362159, 2270265, 4086477, 6810795, 20432385]

約数ペア:

[(1, 20432385), (3, 6810795), (5, 4086477), (9, 2270265), (15, 1362159), (17, 1201905), (27, 756755), (29, 704565), (45, 454053), (51, 400635), (85, 240381), (87, 234855), (135, 151351), (145, 140913), (153, 133545), (255, 80127), (261, 78285), (307, 66555), (435, 46971), (459, 44515), (493, 41445), (765, 26709), (783, 26095), (921, 22185), (1305, 15657), (1479, 13815), (1535, 13311), (2295, 8903), (2465, 8289), (2763, 7395), (3915, 5219), (4437, 4605)]