7478420

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{1879}}^1$

素因数の和:2087

約数の個数: 24

約数和(自身を含む): 15792000

約数和(自身を除く): 8313580

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1879, 1990, 3758, 3980, 7516, 9395, 18790, 37580, 373921, 747842, 1495684, 1869605, 3739210, 7478420]

約数ペア:

[(1, 7478420), (2, 3739210), (4, 1869605), (5, 1495684), (10, 747842), (20, 373921), (199, 37580), (398, 18790), (796, 9395), (995, 7516), (1879, 3980), (1990, 3758)]