1389777785

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{479}}^1\times {\mathrm{743}}^1$

素因数の和:1309

約数の個数: 32

約数和(自身を含む): 1851310080

約数和(自身を除く): 461532295

約数列:

[1, 5, 11, 55, 71, 355, 479, 743, 781, 2395, 3715, 3905, 5269, 8173, 26345, 34009, 40865, 52753, 170045, 263765, 355897, 374099, 580283, 1779485, 1870495, 2901415, 3914867, 19574335, 25268687, 126343435, 277955557, 1389777785]

約数ペア:

[(1, 1389777785), (5, 277955557), (11, 126343435), (55, 25268687), (71, 19574335), (355, 3914867), (479, 2901415), (743, 1870495), (781, 1779485), (2395, 580283), (3715, 374099), (3905, 355897), (5269, 263765), (8173, 170045), (26345, 52753), (34009, 40865)]