20806613180

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{1061}}^1\times {\mathrm{33811}}^1$

素因数の和:34910

約数の個数: 48

約数和(自身を含む): 45244513440

約数和(自身を除く): 24437900260

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 1061, 2122, 4244, 5305, 10610, 21220, 30769, 33811, 61538, 67622, 123076, 135244, 153845, 169055, 307690, 338110, 615380, 676220, 980519, 1961038, 3922076, 4902595, 9805190, 19610380, 35873471, 71746942, 143493884, 179367355, 358734710, 717469420, 1040330659, 2080661318, 4161322636, 5201653295, 10403306590, 20806613180]

約数ペア:

[(1, 20806613180), (2, 10403306590), (4, 5201653295), (5, 4161322636), (10, 2080661318), (20, 1040330659), (29, 717469420), (58, 358734710), (116, 179367355), (145, 143493884), (290, 71746942), (580, 35873471), (1061, 19610380), (2122, 9805190), (4244, 4902595), (5305, 3922076), (10610, 1961038), (21220, 980519), (30769, 676220), (33811, 615380), (61538, 338110), (67622, 307690), (123076, 169055), (135244, 153845)]