19992200

素因数分解:

$2^3\times 5^2\times {\mathrm{99961}}^1$

素因数の和:99977

約数の個数: 24

約数和(自身を含む): 46482330

約数和(自身を除く): 26490130

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 99961, 199922, 399844, 499805, 799688, 999610, 1999220, 2499025, 3998440, 4998050, 9996100, 19992200]

約数ペア:

[(1, 19992200), (2, 9996100), (4, 4998050), (5, 3998440), (8, 2499025), (10, 1999220), (20, 999610), (25, 799688), (40, 499805), (50, 399844), (100, 199922), (200, 99961)]