20512628

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{227}}^1$

素因数の和:320

約数の個数: 48

約数和(自身を含む): 40219200

約数和(自身を除く): 19706572

約数列:

[1, 2, 4, 19, 29, 38, 41, 58, 76, 82, 116, 164, 227, 454, 551, 779, 908, 1102, 1189, 1558, 2204, 2378, 3116, 4313, 4756, 6583, 8626, 9307, 13166, 17252, 18614, 22591, 26332, 37228, 45182, 90364, 125077, 176833, 250154, 269903, 353666, 500308, 539806, 707332, 1079612, 5128157, 10256314, 20512628]

約数ペア:

[(1, 20512628), (2, 10256314), (4, 5128157), (19, 1079612), (29, 707332), (38, 539806), (41, 500308), (58, 353666), (76, 269903), (82, 250154), (116, 176833), (164, 125077), (227, 90364), (454, 45182), (551, 37228), (779, 26332), (908, 22591), (1102, 18614), (1189, 17252), (1558, 13166), (2204, 9307), (2378, 8626), (3116, 6583), (4313, 4756)]