20424400

素因数分解:

$2^4\times 5^2\times {\mathrm{51061}}^1$

素因数の和:51079

約数の個数: 30

約数和(自身を含む): 49070582

約数和(自身を除く): 28646182

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 51061, 102122, 204244, 255305, 408488, 510610, 816976, 1021220, 1276525, 2042440, 2553050, 4084880, 5106100, 10212200, 20424400]

約数ペア:

[(1, 20424400), (2, 10212200), (4, 5106100), (5, 4084880), (8, 2553050), (10, 2042440), (16, 1276525), (20, 1021220), (25, 816976), (40, 510610), (50, 408488), (80, 255305), (100, 204244), (200, 102122), (400, 51061)]