20139500

素因数分解:

$2^2\times 5^3\times {\mathrm{47}}^1\times {\mathrm{857}}^1$

素因数の和:923

約数の個数: 48

約数和(自身を含む): 44972928

約数和(自身を除く): 24833428

約数列:

[1, 2, 4, 5, 10, 20, 25, 47, 50, 94, 100, 125, 188, 235, 250, 470, 500, 857, 940, 1175, 1714, 2350, 3428, 4285, 4700, 5875, 8570, 11750, 17140, 21425, 23500, 40279, 42850, 80558, 85700, 107125, 161116, 201395, 214250, 402790, 428500, 805580, 1006975, 2013950, 4027900, 5034875, 10069750, 20139500]

約数ペア:

[(1, 20139500), (2, 10069750), (4, 5034875), (5, 4027900), (10, 2013950), (20, 1006975), (25, 805580), (47, 428500), (50, 402790), (94, 214250), (100, 201395), (125, 161116), (188, 107125), (235, 85700), (250, 80558), (470, 42850), (500, 40279), (857, 23500), (940, 21425), (1175, 17140), (1714, 11750), (2350, 8570), (3428, 5875), (4285, 4700)]