20807726825

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{509681}}^1$

素因数の和:509785

約数の個数: 24

約数和(自身を含む): 27302645376

約数和(自身を除く): 6494918551

約数列:

[1, 5, 23, 25, 71, 115, 355, 575, 1633, 1775, 8165, 40825, 509681, 2548405, 11722663, 12742025, 36187351, 58613315, 180936755, 293066575, 832309073, 904683775, 4161545365, 20807726825]

約数ペア:

[(1, 20807726825), (5, 4161545365), (23, 904683775), (25, 832309073), (71, 293066575), (115, 180936755), (355, 58613315), (575, 36187351), (1633, 12742025), (1775, 11722663), (8165, 2548405), (40825, 509681)]