28072525

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{5081}}^1$

素因数の和:5121

約数の個数: 24

約数和(自身を含む): 39700584

約数和(自身を除く): 11628059

約数列:

[1, 5, 13, 17, 25, 65, 85, 221, 325, 425, 1105, 5081, 5525, 25405, 66053, 86377, 127025, 330265, 431885, 1122901, 1651325, 2159425, 5614505, 28072525]

約数ペア:

[(1, 28072525), (5, 5614505), (13, 2159425), (17, 1651325), (25, 1122901), (65, 431885), (85, 330265), (221, 127025), (325, 86377), (425, 66053), (1105, 25405), (5081, 5525)]