20130275

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1031}}^1$

素因数の和:1123

約数の個数: 24

約数和(自身を含む): 27641088

約数和(自身を除く): 7510813

約数列:

[1, 5, 11, 25, 55, 71, 275, 355, 781, 1031, 1775, 3905, 5155, 11341, 19525, 25775, 56705, 73201, 283525, 366005, 805211, 1830025, 4026055, 20130275]

約数ペア:

[(1, 20130275), (5, 4026055), (11, 1830025), (25, 805211), (55, 366005), (71, 283525), (275, 73201), (355, 56705), (781, 25775), (1031, 19525), (1775, 11341), (3905, 5155)]