90451880

素因数分解:

$2^3\times 5^1\times {\mathrm{2261297}}^1$

素因数の和:2261308

約数の個数: 16

約数和(自身を含む): 203516820

約数和(自身を除く): 113064940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2261297, 4522594, 9045188, 11306485, 18090376, 22612970, 45225940, 90451880]

約数ペア:

[(1, 90451880), (2, 45225940), (4, 22612970), (5, 18090376), (8, 11306485), (10, 9045188), (20, 4522594), (40, 2261297)]