20189545910

素因数分解:

$2^1\times 5^1\times {\mathrm{2039}}^1\times {\mathrm{990169}}^1$

素因数の和:992215

約数の個数: 16

約数和(自身を含む): 36359042400

約数和(自身を除く): 16169496490

約数列:

[1, 2, 5, 10, 2039, 4078, 10195, 20390, 990169, 1980338, 4950845, 9901690, 2018954591, 4037909182, 10094772955, 20189545910]

約数ペア:

[(1, 20189545910), (2, 10094772955), (5, 4037909182), (10, 2018954591), (2039, 9901690), (4078, 4950845), (10195, 1980338), (20390, 990169)]