28665845

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^2\times {\mathrm{157}}^1$

素因数の和:281

約数の個数: 24

約数和(自身を含む): 37997736

約数和(自身を除く): 9331891

約数列:

[1, 5, 13, 53, 65, 157, 265, 689, 785, 2041, 2809, 3445, 8321, 10205, 14045, 36517, 41605, 108173, 182585, 441013, 540865, 2205065, 5733169, 28665845]

約数ペア:

[(1, 28665845), (5, 5733169), (13, 2205065), (53, 540865), (65, 441013), (157, 182585), (265, 108173), (689, 41605), (785, 36517), (2041, 14045), (2809, 10205), (3445, 8321)]