209570340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{498977}}^1$

素因数の和:498996

約数の個数: 48

約数和(自身を含む): 670626432

約数和(自身を除く): 461056092

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, 498977, 997954, 1496931, 1995908, 2494885, 2993862, 3492839, 4989770, 5987724, 6985678, 7484655, 9979540, 10478517, 13971356, 14969310, 17464195, 20957034, 29938620, 34928390, 41914068, 52392585, 69856780, 104785170, 209570340]

約数ペア:

[(1, 209570340), (2, 104785170), (3, 69856780), (4, 52392585), (5, 41914068), (6, 34928390), (7, 29938620), (10, 20957034), (12, 17464195), (14, 14969310), (15, 13971356), (20, 10478517), (21, 9979540), (28, 7484655), (30, 6985678), (35, 5987724), (42, 4989770), (60, 3492839), (70, 2993862), (84, 2494885), (105, 1995908), (140, 1496931), (210, 997954), (420, 498977)]