19978700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{28541}}^1$

素因数の和:28562

約数の個数: 36

約数和(自身を含む): 49548912

約数和(自身を除く): 29570212

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 350, 700, 28541, 57082, 114164, 142705, 199787, 285410, 399574, 570820, 713525, 799148, 998935, 1427050, 1997870, 2854100, 3995740, 4994675, 9989350, 19978700]

約数ペア:

[(1, 19978700), (2, 9989350), (4, 4994675), (5, 3995740), (7, 2854100), (10, 1997870), (14, 1427050), (20, 998935), (25, 799148), (28, 713525), (35, 570820), (50, 399574), (70, 285410), (100, 199787), (140, 142705), (175, 114164), (350, 57082), (700, 28541)]