16999040

素因数分解:

$2^7\times 5^1\times {\mathrm{26561}}^1$

素因数の和:26580

約数の個数: 32

約数和(自身を含む): 40639860

約数和(自身を除く): 23640820

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 26561, 53122, 106244, 132805, 212488, 265610, 424976, 531220, 849952, 1062440, 1699904, 2124880, 3399808, 4249760, 8499520, 16999040]

約数ペア:

[(1, 16999040), (2, 8499520), (4, 4249760), (5, 3399808), (8, 2124880), (10, 1699904), (16, 1062440), (20, 849952), (32, 531220), (40, 424976), (64, 265610), (80, 212488), (128, 132805), (160, 106244), (320, 53122), (640, 26561)]