18306890

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{37361}}^1$

素因数の和:37382

約数の個数: 24

約数和(自身を含む): 38333412

約数和(自身を除く): 20026522

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 37361, 74722, 186805, 261527, 373610, 523054, 1307635, 1830689, 2615270, 3661378, 9153445, 18306890]

約数ペア:

[(1, 18306890), (2, 9153445), (5, 3661378), (7, 2615270), (10, 1830689), (14, 1307635), (35, 523054), (49, 373610), (70, 261527), (98, 186805), (245, 74722), (490, 37361)]