55420520

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{719}}^1$

素因数の和:818

約数の個数: 64

約数和(自身を含む): 130636800

約数和(自身を除く): 75216280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 47, 82, 94, 164, 188, 205, 235, 328, 376, 410, 470, 719, 820, 940, 1438, 1640, 1880, 1927, 2876, 3595, 3854, 5752, 7190, 7708, 9635, 14380, 15416, 19270, 28760, 29479, 33793, 38540, 58958, 67586, 77080, 117916, 135172, 147395, 168965, 235832, 270344, 294790, 337930, 589580, 675860, 1179160, 1351720, 1385513, 2771026, 5542052, 6927565, 11084104, 13855130, 27710260, 55420520]

約数ペア:

[(1, 55420520), (2, 27710260), (4, 13855130), (5, 11084104), (8, 6927565), (10, 5542052), (20, 2771026), (40, 1385513), (41, 1351720), (47, 1179160), (82, 675860), (94, 589580), (164, 337930), (188, 294790), (205, 270344), (235, 235832), (328, 168965), (376, 147395), (410, 135172), (470, 117916), (719, 77080), (820, 67586), (940, 58958), (1438, 38540), (1640, 33793), (1880, 29479), (1927, 28760), (2876, 19270), (3595, 15416), (3854, 14380), (5752, 9635), (7190, 7708)]