1279400

素因数分解:

$2^3\times 5^2\times {\mathrm{6397}}^1$

素因数の和:6413

約数の個数: 24

約数和(自身を含む): 2975070

約数和(自身を除く): 1695670

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 6397, 12794, 25588, 31985, 51176, 63970, 127940, 159925, 255880, 319850, 639700, 1279400]

約数ペア:

[(1, 1279400), (2, 639700), (4, 319850), (5, 255880), (8, 159925), (10, 127940), (20, 63970), (25, 51176), (40, 31985), (50, 25588), (100, 12794), (200, 6397)]