18140290

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{37021}}^1$

素因数の和:37042

約数の個数: 24

約数和(自身を含む): 37984572

約数和(自身を除く): 19844282

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 37021, 74042, 185105, 259147, 370210, 518294, 1295735, 1814029, 2591470, 3628058, 9070145, 18140290]

約数ペア:

[(1, 18140290), (2, 9070145), (5, 3628058), (7, 2591470), (10, 1814029), (14, 1295735), (35, 518294), (49, 370210), (70, 259147), (98, 185105), (245, 74042), (490, 37021)]