78240916

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{115741}}^1$

素因数の和:115771

約数の個数: 18

約数和(自身を含む): 148265502

約数和(自身を除く): 70024586

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 115741, 231482, 462964, 1504633, 3009266, 6018532, 19560229, 39120458, 78240916]

約数ペア:

[(1, 78240916), (2, 39120458), (4, 19560229), (13, 6018532), (26, 3009266), (52, 1504633), (169, 462964), (338, 231482), (676, 115741)]