20892440

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{11113}}^1$

素因数の和:11171

約数の個数: 32

約数和(自身を含む): 48012480

約数和(自身を除く): 27120040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 11113, 22226, 44452, 55565, 88904, 111130, 222260, 444520, 522311, 1044622, 2089244, 2611555, 4178488, 5223110, 10446220, 20892440]

約数ペア:

[(1, 20892440), (2, 10446220), (4, 5223110), (5, 4178488), (8, 2611555), (10, 2089244), (20, 1044622), (40, 522311), (47, 444520), (94, 222260), (188, 111130), (235, 88904), (376, 55565), (470, 44452), (940, 22226), (1880, 11113)]