20499255

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{1103}}^1$

素因数の和:1180

約数の個数: 48

約数和(自身を含む): 41333760

約数和(自身を除く): 20834505

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 59, 63, 105, 177, 295, 315, 413, 531, 885, 1103, 1239, 2065, 2655, 3309, 3717, 5515, 6195, 7721, 9927, 16545, 18585, 23163, 38605, 49635, 65077, 69489, 115815, 195231, 325385, 347445, 455539, 585693, 976155, 1366617, 2277695, 2928465, 4099851, 6833085, 20499255]

約数ペア:

[(1, 20499255), (3, 6833085), (5, 4099851), (7, 2928465), (9, 2277695), (15, 1366617), (21, 976155), (35, 585693), (45, 455539), (59, 347445), (63, 325385), (105, 195231), (177, 115815), (295, 69489), (315, 65077), (413, 49635), (531, 38605), (885, 23163), (1103, 18585), (1239, 16545), (2065, 9927), (2655, 7721), (3309, 6195), (3717, 5515)]