19956365

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{113}}^1$

素因数の和:174

約数の個数: 48

約数和(自身を含む): 30041280

約数和(自身を除く): 10084915

約数列:

[1, 5, 11, 13, 19, 55, 65, 95, 113, 143, 169, 209, 247, 565, 715, 845, 1045, 1235, 1243, 1469, 1859, 2147, 2717, 3211, 6215, 7345, 9295, 10735, 13585, 16055, 16159, 19097, 23617, 27911, 35321, 80795, 95485, 118085, 139555, 176605, 210067, 307021, 362843, 1050335, 1535105, 1814215, 3991273, 19956365]

約数ペア:

[(1, 19956365), (5, 3991273), (11, 1814215), (13, 1535105), (19, 1050335), (55, 362843), (65, 307021), (95, 210067), (113, 176605), (143, 139555), (169, 118085), (209, 95485), (247, 80795), (565, 35321), (715, 27911), (845, 23617), (1045, 19097), (1235, 16159), (1243, 16055), (1469, 13585), (1859, 10735), (2147, 9295), (2717, 7345), (3211, 6215)]