1272740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{9091}}^1$

素因数の和:9107

約数の個数: 24

約数和(自身を含む): 3054912

約数和(自身を除く): 1782172

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 9091, 18182, 36364, 45455, 63637, 90910, 127274, 181820, 254548, 318185, 636370, 1272740]

約数ペア:

[(1, 1272740), (2, 636370), (4, 318185), (5, 254548), (7, 181820), (10, 127274), (14, 90910), (20, 63637), (28, 45455), (35, 36364), (70, 18182), (140, 9091)]