31112240

素因数分解:

$2^4\times 5^1\times {\mathrm{388903}}^1$

素因数の和:388916

約数の個数: 20

約数和(自身を含む): 72336144

約数和(自身を除く): 41223904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 388903, 777806, 1555612, 1944515, 3111224, 3889030, 6222448, 7778060, 15556120, 31112240]

約数ペア:

[(1, 31112240), (2, 15556120), (4, 7778060), (5, 6222448), (8, 3889030), (10, 3111224), (16, 1944515), (20, 1555612), (40, 777806), (80, 388903)]