20254400

素因数分解:

$2^6\times 5^2\times {\mathrm{12659}}^1$

素因数の和:12681

約数の個数: 42

約数和(自身を含む): 49842420

約数和(自身を除く): 29588020

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 160, 200, 320, 400, 800, 1600, 12659, 25318, 50636, 63295, 101272, 126590, 202544, 253180, 316475, 405088, 506360, 632950, 810176, 1012720, 1265900, 2025440, 2531800, 4050880, 5063600, 10127200, 20254400]

約数ペア:

[(1, 20254400), (2, 10127200), (4, 5063600), (5, 4050880), (8, 2531800), (10, 2025440), (16, 1265900), (20, 1012720), (25, 810176), (32, 632950), (40, 506360), (50, 405088), (64, 316475), (80, 253180), (100, 202544), (160, 126590), (200, 101272), (320, 63295), (400, 50636), (800, 25318), (1600, 12659)]