1009904540

素因数分解:

$2^2\times 5^1\times {\mathrm{7103}}^1\times {\mathrm{7109}}^1$

素因数の和:14221

約数の個数: 24

約数和(自身を含む): 2121396480

約数和(自身を除く): 1111491940

約数列:

[1, 2, 4, 5, 10, 20, 7103, 7109, 14206, 14218, 28412, 28436, 35515, 35545, 71030, 71090, 142060, 142180, 50495227, 100990454, 201980908, 252476135, 504952270, 1009904540]

約数ペア:

[(1, 1009904540), (2, 504952270), (4, 252476135), (5, 201980908), (10, 100990454), (20, 50495227), (7103, 142180), (7109, 142060), (14206, 71090), (14218, 71030), (28412, 35545), (28436, 35515)]