16889575

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{37}}^1$

素因数の和:128

約数の個数: 36

約数和(自身を含む): 23395080

約数和(自身を除く): 6505505

約数列:

[1, 5, 19, 25, 31, 37, 95, 155, 185, 475, 589, 703, 775, 925, 961, 1147, 2945, 3515, 4805, 5735, 14725, 17575, 18259, 21793, 24025, 28675, 35557, 91295, 108965, 177785, 456475, 544825, 675583, 888925, 3377915, 16889575]

約数ペア:

[(1, 16889575), (5, 3377915), (19, 888925), (25, 675583), (31, 544825), (37, 456475), (95, 177785), (155, 108965), (185, 91295), (475, 35557), (589, 28675), (703, 24025), (775, 21793), (925, 18259), (961, 17575), (1147, 14725), (2945, 5735), (3515, 4805)]