55191080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{439}}^1\times {\mathrm{449}}^1$

素因数の和:906

約数の個数: 64

約数和(自身を含む): 142560000

約数和(自身を除く): 87368920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 439, 449, 878, 898, 1756, 1796, 2195, 2245, 3073, 3143, 3512, 3592, 4390, 4490, 6146, 6286, 8780, 8980, 12292, 12572, 15365, 15715, 17560, 17960, 24584, 25144, 30730, 31430, 61460, 62860, 122920, 125720, 197111, 394222, 788444, 985555, 1379777, 1576888, 1971110, 2759554, 3942220, 5519108, 6898885, 7884440, 11038216, 13797770, 27595540, 55191080]

約数ペア:

[(1, 55191080), (2, 27595540), (4, 13797770), (5, 11038216), (7, 7884440), (8, 6898885), (10, 5519108), (14, 3942220), (20, 2759554), (28, 1971110), (35, 1576888), (40, 1379777), (56, 985555), (70, 788444), (140, 394222), (280, 197111), (439, 125720), (449, 122920), (878, 62860), (898, 61460), (1756, 31430), (1796, 30730), (2195, 25144), (2245, 24584), (3073, 17960), (3143, 17560), (3512, 15715), (3592, 15365), (4390, 12572), (4490, 12292), (6146, 8980), (6286, 8780)]