20199709940

素因数分解:

$2^2\times 5^1\times {\mathrm{18457}}^1\times {\mathrm{54721}}^1$

素因数の和:73187

約数の個数: 24

約数和(自身を含む): 42422464392

約数和(自身を除く): 22222754452

約数列:

[1, 2, 4, 5, 10, 20, 18457, 36914, 54721, 73828, 92285, 109442, 184570, 218884, 273605, 369140, 547210, 1094420, 1009985497, 2019970994, 4039941988, 5049927485, 10099854970, 20199709940]

約数ペア:

[(1, 20199709940), (2, 10099854970), (4, 5049927485), (5, 4039941988), (10, 2019970994), (20, 1009985497), (18457, 1094420), (36914, 547210), (54721, 369140), (73828, 273605), (92285, 218884), (109442, 184570)]