68708290

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{140221}}^1$

素因数の和:140242

約数の個数: 24

約数和(自身を含む): 143867772

約数和(自身を除く): 75159482

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 140221, 280442, 701105, 981547, 1402210, 1963094, 4907735, 6870829, 9815470, 13741658, 34354145, 68708290]

約数ペア:

[(1, 68708290), (2, 34354145), (5, 13741658), (7, 9815470), (10, 6870829), (14, 4907735), (35, 1963094), (49, 1402210), (70, 981547), (98, 701105), (245, 280442), (490, 140221)]