20161587620

素因数分解:

$2^2\times 5^1\times {\mathrm{12503}}^1\times {\mathrm{80627}}^1$

素因数の和:93139

約数の個数: 24

約数和(自身を含む): 42343245504

約数和(自身を除く): 22181657884

約数列:

[1, 2, 4, 5, 10, 20, 12503, 25006, 50012, 62515, 80627, 125030, 161254, 250060, 322508, 403135, 806270, 1612540, 1008079381, 2016158762, 4032317524, 5040396905, 10080793810, 20161587620]

約数ペア:

[(1, 20161587620), (2, 10080793810), (4, 5040396905), (5, 4032317524), (10, 2016158762), (20, 1008079381), (12503, 1612540), (25006, 806270), (50012, 403135), (62515, 322508), (80627, 250060), (125030, 161254)]