1908478655

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{199}}^1\times {\mathrm{643}}^1$

素因数の和:1023

約数の個数: 32

約数和(自身を含む): 2442048000

約数和(自身を除く): 533569345

約数列:

[1, 5, 19, 95, 157, 199, 643, 785, 995, 2983, 3215, 3781, 12217, 14915, 18905, 31243, 61085, 100951, 127957, 156215, 504755, 593617, 639785, 1918069, 2431183, 2968085, 9590345, 12155915, 20089249, 100446245, 381695731, 1908478655]

約数ペア:

[(1, 1908478655), (5, 381695731), (19, 100446245), (95, 20089249), (157, 12155915), (199, 9590345), (643, 2968085), (785, 2431183), (995, 1918069), (2983, 639785), (3215, 593617), (3781, 504755), (12217, 156215), (14915, 127957), (18905, 100951), (31243, 61085)]