2005024220

素因数分解:

$2^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{449557}}^1$

素因数の和:449789

約数の個数: 24

約数和(自身を含む): 4229441664

約数和(自身を除く): 2224417444

約数列:

[1, 2, 4, 5, 10, 20, 223, 446, 892, 1115, 2230, 4460, 449557, 899114, 1798228, 2247785, 4495570, 8991140, 100251211, 200502422, 401004844, 501256055, 1002512110, 2005024220]

約数ペア:

[(1, 2005024220), (2, 1002512110), (4, 501256055), (5, 401004844), (10, 200502422), (20, 100251211), (223, 8991140), (446, 4495570), (892, 2247785), (1115, 1798228), (2230, 899114), (4460, 449557)]