128803585

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1\times {\mathrm{2311}}^1$

素因数の和:2544

約数の個数: 16

約数和(自身を含む): 157807872

約数和(自身を除く): 29004287

約数列:

[1, 5, 71, 157, 355, 785, 2311, 11147, 11555, 55735, 164081, 362827, 820405, 1814135, 25760717, 128803585]

約数ペア:

[(1, 128803585), (5, 25760717), (71, 1814135), (157, 820405), (355, 362827), (785, 164081), (2311, 55735), (11147, 11555)]