27081880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{311}}^2$

素因数の和:640

約数の個数: 48

約数和(自身を含む): 69863760

約数和(自身を除く): 42781880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 311, 622, 1244, 1555, 2177, 2488, 3110, 4354, 6220, 8708, 10885, 12440, 17416, 21770, 43540, 87080, 96721, 193442, 386884, 483605, 677047, 773768, 967210, 1354094, 1934420, 2708188, 3385235, 3868840, 5416376, 6770470, 13540940, 27081880]

約数ペア:

[(1, 27081880), (2, 13540940), (4, 6770470), (5, 5416376), (7, 3868840), (8, 3385235), (10, 2708188), (14, 1934420), (20, 1354094), (28, 967210), (35, 773768), (40, 677047), (56, 483605), (70, 386884), (140, 193442), (280, 96721), (311, 87080), (622, 43540), (1244, 21770), (1555, 17416), (2177, 12440), (2488, 10885), (3110, 8708), (4354, 6220)]