127897400

素因数分解:

$2^3\times 5^2\times {\mathrm{639487}}^1$

素因数の和:639503

約数の個数: 24

約数和(自身を含む): 297361920

約数和(自身を除く): 169464520

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 639487, 1278974, 2557948, 3197435, 5115896, 6394870, 12789740, 15987175, 25579480, 31974350, 63948700, 127897400]

約数ペア:

[(1, 127897400), (2, 63948700), (4, 31974350), (5, 25579480), (8, 15987175), (10, 12789740), (20, 6394870), (25, 5115896), (40, 3197435), (50, 2557948), (100, 1278974), (200, 639487)]