19776890

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{40361}}^1$

素因数の和:40382

約数の個数: 24

約数和(自身を含む): 41411412

約数和(自身を除く): 21634522

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 40361, 80722, 201805, 282527, 403610, 565054, 1412635, 1977689, 2825270, 3955378, 9888445, 19776890]

約数ペア:

[(1, 19776890), (2, 9888445), (5, 3955378), (7, 2825270), (10, 1977689), (14, 1412635), (35, 565054), (49, 403610), (70, 282527), (98, 201805), (245, 80722), (490, 40361)]