28826140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{1889}}^1$

素因数の和:2014

約数の個数: 48

約数和(自身を含む): 69854400

約数和(自身を除く): 41028260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 109, 140, 218, 436, 545, 763, 1090, 1526, 1889, 2180, 3052, 3778, 3815, 7556, 7630, 9445, 13223, 15260, 18890, 26446, 37780, 52892, 66115, 132230, 205901, 264460, 411802, 823604, 1029505, 1441307, 2059010, 2882614, 4118020, 5765228, 7206535, 14413070, 28826140]

約数ペア:

[(1, 28826140), (2, 14413070), (4, 7206535), (5, 5765228), (7, 4118020), (10, 2882614), (14, 2059010), (20, 1441307), (28, 1029505), (35, 823604), (70, 411802), (109, 264460), (140, 205901), (218, 132230), (436, 66115), (545, 52892), (763, 37780), (1090, 26446), (1526, 18890), (1889, 15260), (2180, 13223), (3052, 9445), (3778, 7630), (3815, 7556)]