7257980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{21347}}^1$

素因数の和:21373

約数の個数: 24

約数和(自身を含む): 16139088

約数和(自身を除く): 8881108

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 21347, 42694, 85388, 106735, 213470, 362899, 426940, 725798, 1451596, 1814495, 3628990, 7257980]

約数ペア:

[(1, 7257980), (2, 3628990), (4, 1814495), (5, 1451596), (10, 725798), (17, 426940), (20, 362899), (34, 213470), (68, 106735), (85, 85388), (170, 42694), (340, 21347)]