20097800

素因数分解:

$2^3\times 5^2\times {\mathrm{317}}^2$

素因数の和:650

約数の個数: 36

約数和(自身を含む): 46875255

約数和(自身を除く): 26777455

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 317, 634, 1268, 1585, 2536, 3170, 6340, 7925, 12680, 15850, 31700, 63400, 100489, 200978, 401956, 502445, 803912, 1004890, 2009780, 2512225, 4019560, 5024450, 10048900, 20097800]

約数ペア:

[(1, 20097800), (2, 10048900), (4, 5024450), (5, 4019560), (8, 2512225), (10, 2009780), (20, 1004890), (25, 803912), (40, 502445), (50, 401956), (100, 200978), (200, 100489), (317, 63400), (634, 31700), (1268, 15850), (1585, 12680), (2536, 7925), (3170, 6340)]