12988900

素因数分解:

$2^2\times 5^2\times {\mathrm{193}}^1\times {\mathrm{673}}^1$

素因数の和:880

約数の個数: 36

約数和(自身を含む): 28374052

約数和(自身を除く): 15385152

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 193, 386, 673, 772, 965, 1346, 1930, 2692, 3365, 3860, 4825, 6730, 9650, 13460, 16825, 19300, 33650, 67300, 129889, 259778, 519556, 649445, 1298890, 2597780, 3247225, 6494450, 12988900]

約数ペア:

[(1, 12988900), (2, 6494450), (4, 3247225), (5, 2597780), (10, 1298890), (20, 649445), (25, 519556), (50, 259778), (100, 129889), (193, 67300), (386, 33650), (673, 19300), (772, 16825), (965, 13460), (1346, 9650), (1930, 6730), (2692, 4825), (3365, 3860)]