71357420

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{17929}}^1$

素因数の和:18137

約数の個数: 24

約数和(自身を含む): 150612000

約数和(自身を除く): 79254580

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980, 17929, 35858, 71716, 89645, 179290, 358580, 3567871, 7135742, 14271484, 17839355, 35678710, 71357420]

約数ペア:

[(1, 71357420), (2, 35678710), (4, 17839355), (5, 14271484), (10, 7135742), (20, 3567871), (199, 358580), (398, 179290), (796, 89645), (995, 71716), (1990, 35858), (3980, 17929)]