39778906

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{199}}^1\times {\mathrm{1123}}^1$

素因数の和:1413

約数の個数: 16

約数和(自身を含む): 60696000

約数和(自身を除く): 20917094

約数列:

[1, 2, 89, 178, 199, 398, 1123, 2246, 17711, 35422, 99947, 199894, 223477, 446954, 19889453, 39778906]

約数ペア:

[(1, 39778906), (2, 19889453), (89, 446954), (178, 223477), (199, 199894), (398, 99947), (1123, 35422), (2246, 17711)]