205904720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{367687}}^1$

素因数の和:367707

約数の個数: 40

約数和(自身を含む): 547119744

約数和(自身を除く): 341215024

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 367687, 735374, 1470748, 1838435, 2573809, 2941496, 3676870, 5147618, 5882992, 7353740, 10295236, 12869045, 14707480, 20590472, 25738090, 29414960, 41180944, 51476180, 102952360, 205904720]

約数ペア:

[(1, 205904720), (2, 102952360), (4, 51476180), (5, 41180944), (7, 29414960), (8, 25738090), (10, 20590472), (14, 14707480), (16, 12869045), (20, 10295236), (28, 7353740), (35, 5882992), (40, 5147618), (56, 3676870), (70, 2941496), (80, 2573809), (112, 1838435), (140, 1470748), (280, 735374), (560, 367687)]