209540940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{498907}}^1$

素因数の和:498926

約数の個数: 48

約数和(自身を含む): 670532352

約数和(自身を除く): 460991412

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 498907, 997814, 1496721, 1995628, 2494535, 2993442, 3492349, 4989070, 5986884, 6984698, 7483605, 9978140, 10477047, 13969396, 14967210, 17461745, 20954094, 29934420, 34923490, 41908188, 52385235, 69846980, 104770470, 209540940]

約数ペア:

[(1, 209540940), (2, 104770470), (3, 69846980), (4, 52385235), (5, 41908188), (6, 34923490), (7, 29934420), (10, 20954094), (12, 17461745), (14, 14967210), (15, 13969396), (20, 10477047), (21, 9978140), (28, 7483605), (30, 6984698), (35, 5986884), (42, 4989070), (60, 3492349), (70, 2993442), (84, 2494535), (105, 1995628), (140, 1496721), (210, 997814), (420, 498907)]