276820040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{988643}}^1$

素因数の和:988661

約数の個数: 32

約数和(自身を含む): 711823680

約数和(自身を除く): 435003640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 988643, 1977286, 3954572, 4943215, 6920501, 7909144, 9886430, 13841002, 19772860, 27682004, 34602505, 39545720, 55364008, 69205010, 138410020, 276820040]

約数ペア:

[(1, 276820040), (2, 138410020), (4, 69205010), (5, 55364008), (7, 39545720), (8, 34602505), (10, 27682004), (14, 19772860), (20, 13841002), (28, 9886430), (35, 7909144), (40, 6920501), (56, 4943215), (70, 3954572), (140, 1977286), (280, 988643)]