19914800

素因数分解:

$2^4\times 5^2\times {\mathrm{49787}}^1$

素因数の和:49805

約数の個数: 30

約数和(自身を含む): 47846268

約数和(自身を除く): 27931468

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 49787, 99574, 199148, 248935, 398296, 497870, 796592, 995740, 1244675, 1991480, 2489350, 3982960, 4978700, 9957400, 19914800]

約数ペア:

[(1, 19914800), (2, 9957400), (4, 4978700), (5, 3982960), (8, 2489350), (10, 1991480), (16, 1244675), (20, 995740), (25, 796592), (40, 497870), (50, 398296), (80, 248935), (100, 199148), (200, 99574), (400, 49787)]