31192240

素因数分解:

$2^4\times 5^1\times {\mathrm{389903}}^1$

素因数の和:389916

約数の個数: 20

約数和(自身を含む): 72522144

約数和(自身を除く): 41329904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 389903, 779806, 1559612, 1949515, 3119224, 3899030, 6238448, 7798060, 15596120, 31192240]

約数ペア:

[(1, 31192240), (2, 15596120), (4, 7798060), (5, 6238448), (8, 3899030), (10, 3119224), (16, 1949515), (20, 1559612), (40, 779806), (80, 389903)]