31192880

素因数分解:

$2^4\times 5^1\times {\mathrm{389911}}^1$

素因数の和:389924

約数の個数: 20

約数和(自身を含む): 72523632

約数和(自身を除く): 41330752

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 389911, 779822, 1559644, 1949555, 3119288, 3899110, 6238576, 7798220, 15596440, 31192880]

約数ペア:

[(1, 31192880), (2, 15596440), (4, 7798220), (5, 6238576), (8, 3899110), (10, 3119288), (16, 1949555), (20, 1559644), (40, 779822), (80, 389911)]