20501300

素因数分解:

$2^2\times 5^2\times {\mathrm{439}}^1\times {\mathrm{467}}^1$

素因数の和:920

約数の個数: 36

約数和(自身を含む): 44684640

約数和(自身を除く): 24183340

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 439, 467, 878, 934, 1756, 1868, 2195, 2335, 4390, 4670, 8780, 9340, 10975, 11675, 21950, 23350, 43900, 46700, 205013, 410026, 820052, 1025065, 2050130, 4100260, 5125325, 10250650, 20501300]

約数ペア:

[(1, 20501300), (2, 10250650), (4, 5125325), (5, 4100260), (10, 2050130), (20, 1025065), (25, 820052), (50, 410026), (100, 205013), (439, 46700), (467, 43900), (878, 23350), (934, 21950), (1756, 11675), (1868, 10975), (2195, 9340), (2335, 8780), (4390, 4670)]