20188693780

素因数分解:

$2^2\times 5^1\times {\mathrm{1009434689}}^1$

素因数の和:1009434698

約数の個数: 12

約数和(自身を含む): 42396256980

約数和(自身を除く): 22207563200

約数列:

[1, 2, 4, 5, 10, 20, 1009434689, 2018869378, 4037738756, 5047173445, 10094346890, 20188693780]

約数ペア:

[(1, 20188693780), (2, 10094346890), (4, 5047173445), (5, 4037738756), (10, 2018869378), (20, 1009434689)]