20199131980

素因数分解:

$2^2\times 5^1\times {\mathrm{1009956599}}^1$

素因数の和:1009956608

約数の個数: 12

約数和(自身を含む): 42418177200

約数和(自身を除く): 22219045220

約数列:

[1, 2, 4, 5, 10, 20, 1009956599, 2019913198, 4039826396, 5049782995, 10099565990, 20199131980]

約数ペア:

[(1, 20199131980), (2, 10099565990), (4, 5049782995), (5, 4039826396), (10, 2019913198), (20, 1009956599)]