28437175

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{5147}}^1$

素因数の和:5187

約数の個数: 24

約数和(自身を含む): 40216176

約数和(自身を除く): 11779001

約数列:

[1, 5, 13, 17, 25, 65, 85, 221, 325, 425, 1105, 5147, 5525, 25735, 66911, 87499, 128675, 334555, 437495, 1137487, 1672775, 2187475, 5687435, 28437175]

約数ペア:

[(1, 28437175), (5, 5687435), (13, 2187475), (17, 1672775), (25, 1137487), (65, 437495), (85, 334555), (221, 128675), (325, 87499), (425, 66911), (1105, 25735), (5147, 5525)]