20059900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{28657}}^1$

素因数の和:28678

約数の個数: 36

約数和(自身を含む): 49750288

約数和(自身を除く): 29690388

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 350, 700, 28657, 57314, 114628, 143285, 200599, 286570, 401198, 573140, 716425, 802396, 1002995, 1432850, 2005990, 2865700, 4011980, 5014975, 10029950, 20059900]

約数ペア:

[(1, 20059900), (2, 10029950), (4, 5014975), (5, 4011980), (7, 2865700), (10, 2005990), (14, 1432850), (20, 1002995), (25, 802396), (28, 716425), (35, 573140), (50, 401198), (70, 286570), (100, 200599), (140, 143285), (175, 114628), (350, 57314), (700, 28657)]