12784040

素因数分解:

$2^3\times 5^1\times {\mathrm{319601}}^1$

素因数の和:319612

約数の個数: 16

約数和(自身を含む): 28764180

約数和(自身を除く): 15980140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 319601, 639202, 1278404, 1598005, 2556808, 3196010, 6392020, 12784040]

約数ペア:

[(1, 12784040), (2, 6392020), (4, 3196010), (5, 2556808), (8, 1598005), (10, 1278404), (20, 639202), (40, 319601)]