20410040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{72893}}^1$

素因数の和:72911

約数の個数: 32

約数和(自身を含む): 52483680

約数和(自身を除く): 32073640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 72893, 145786, 291572, 364465, 510251, 583144, 728930, 1020502, 1457860, 2041004, 2551255, 2915720, 4082008, 5102510, 10205020, 20410040]

約数ペア:

[(1, 20410040), (2, 10205020), (4, 5102510), (5, 4082008), (7, 2915720), (8, 2551255), (10, 2041004), (14, 1457860), (20, 1020502), (28, 728930), (35, 583144), (40, 510251), (56, 364465), (70, 291572), (140, 145786), (280, 72893)]