79400

素因数分解:

$2^3\times 5^2\times {\mathrm{397}}^1$

素因数の和:413

約数の個数: 24

約数和(自身を含む): 185070

約数和(自身を除く): 105670

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 397, 794, 1588, 1985, 3176, 3970, 7940, 9925, 15880, 19850, 39700, 79400]

約数ペア:

[(1, 79400), (2, 39700), (4, 19850), (5, 15880), (8, 9925), (10, 7940), (20, 3970), (25, 3176), (40, 1985), (50, 1588), (100, 794), (200, 397)]