25643156356

素因数分解:

$2^2\times {\mathrm{643}}^1\times {\mathrm{9970123}}^1$

素因数の和:9970770

約数の個数: 12

約数和(自身を含む): 44945318992

約数和(自身を除く): 19302162636

約数列:

[1, 2, 4, 643, 1286, 2572, 9970123, 19940246, 39880492, 6410789089, 12821578178, 25643156356]

約数ペア:

[(1, 25643156356), (2, 12821578178), (4, 6410789089), (643, 39880492), (1286, 19940246), (2572, 9970123)]