20198290

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{41221}}^1$

素因数の和:41242

約数の個数: 24

約数和(自身を含む): 42293772

約数和(自身を除く): 22095482

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 41221, 82442, 206105, 288547, 412210, 577094, 1442735, 2019829, 2885470, 4039658, 10099145, 20198290]

約数ペア:

[(1, 20198290), (2, 10099145), (5, 4039658), (7, 2885470), (10, 2019829), (14, 1442735), (35, 577094), (49, 412210), (70, 288547), (98, 206105), (245, 82442), (490, 41221)]