20199167980

素因数分解:

$2^2\times 5^1\times {\mathrm{1009958399}}^1$

素因数の和:1009958408

約数の個数: 12

約数和(自身を含む): 42418252800

約数和(自身を除く): 22219084820

約数列:

[1, 2, 4, 5, 10, 20, 1009958399, 2019916798, 4039833596, 5049791995, 10099583990, 20199167980]

約数ペア:

[(1, 20199167980), (2, 10099583990), (4, 5049791995), (5, 4039833596), (10, 2019916798), (20, 1009958399)]