12618800

素因数分解:

$2^4\times 5^2\times {\mathrm{31547}}^1$

素因数の和:31565

約数の個数: 30

約数和(自身を含む): 30317628

約数和(自身を除く): 17698828

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 31547, 63094, 126188, 157735, 252376, 315470, 504752, 630940, 788675, 1261880, 1577350, 2523760, 3154700, 6309400, 12618800]

約数ペア:

[(1, 12618800), (2, 6309400), (4, 3154700), (5, 2523760), (8, 1577350), (10, 1261880), (16, 788675), (20, 630940), (25, 504752), (40, 315470), (50, 252376), (80, 157735), (100, 126188), (200, 63094), (400, 31547)]