158800

素因数分解:

$2^4\times 5^2\times {\mathrm{397}}^1$

素因数の和:415

約数の個数: 30

約数和(自身を含む): 382478

約数和(自身を除く): 223678

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 397, 400, 794, 1588, 1985, 3176, 3970, 6352, 7940, 9925, 15880, 19850, 31760, 39700, 79400, 158800]

約数ペア:

[(1, 158800), (2, 79400), (4, 39700), (5, 31760), (8, 19850), (10, 15880), (16, 9925), (20, 7940), (25, 6352), (40, 3970), (50, 3176), (80, 1985), (100, 1588), (200, 794), (397, 400)]