126980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{907}}^1$

素因数の和:923

約数の個数: 24

約数和(自身を含む): 305088

約数和(自身を除く): 178108

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 907, 1814, 3628, 4535, 6349, 9070, 12698, 18140, 25396, 31745, 63490, 126980]

約数ペア:

[(1, 126980), (2, 63490), (4, 31745), (5, 25396), (7, 18140), (10, 12698), (14, 9070), (20, 6349), (28, 4535), (35, 3628), (70, 1814), (140, 907)]