20199870542

素因数分解:

$2^1\times {\mathrm{397}}^1\times {\mathrm{401}}^1\times {\mathrm{63443}}^1$

素因数の和:64243

約数の個数: 16

約数和(自身を含む): 30452358672

約数和(自身を除く): 10252488130

約数列:

[1, 2, 397, 401, 794, 802, 63443, 126886, 159197, 318394, 25186871, 25440643, 50373742, 50881286, 10099935271, 20199870542]

約数ペア:

[(1, 20199870542), (2, 10099935271), (397, 50881286), (401, 50373742), (794, 25440643), (802, 25186871), (63443, 318394), (126886, 159197)]