20744180

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{8167}}^1$

素因数の和:8303

約数の個数: 24

約数和(自身を含む): 43911168

約数和(自身を除く): 23166988

約数列:

[1, 2, 4, 5, 10, 20, 127, 254, 508, 635, 1270, 2540, 8167, 16334, 32668, 40835, 81670, 163340, 1037209, 2074418, 4148836, 5186045, 10372090, 20744180]

約数ペア:

[(1, 20744180), (2, 10372090), (4, 5186045), (5, 4148836), (10, 2074418), (20, 1037209), (127, 163340), (254, 81670), (508, 40835), (635, 32668), (1270, 16334), (2540, 8167)]