20201383985

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{421}}^1\times {\mathrm{7951}}^1$

素因数の和:8465

約数の個数: 32

約数和(自身を含む): 26094265344

約数和(自身を除く): 5892881359

約数列:

[1, 5, 17, 71, 85, 355, 421, 1207, 2105, 6035, 7157, 7951, 29891, 35785, 39755, 135167, 149455, 508147, 564521, 675835, 2540735, 2822605, 3347371, 9596857, 16736855, 47984285, 56905307, 237663341, 284526535, 1188316705, 4040276797, 20201383985]

約数ペア:

[(1, 20201383985), (5, 4040276797), (17, 1188316705), (71, 284526535), (85, 237663341), (355, 56905307), (421, 47984285), (1207, 16736855), (2105, 9596857), (6035, 3347371), (7157, 2822605), (7951, 2540735), (29891, 675835), (35785, 564521), (39755, 508147), (135167, 149455)]