81427775

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{22777}}^1$

素因数の和:22811

約数の個数: 24

約数和(自身を含む): 118627824

約数和(自身を除く): 37200049

約数列:

[1, 5, 11, 13, 25, 55, 65, 143, 275, 325, 715, 3575, 22777, 113885, 250547, 296101, 569425, 1252735, 1480505, 3257111, 6263675, 7402525, 16285555, 81427775]

約数ペア:

[(1, 81427775), (5, 16285555), (11, 7402525), (13, 6263675), (25, 3257111), (55, 1480505), (65, 1252735), (143, 569425), (275, 296101), (325, 250547), (715, 113885), (3575, 22777)]