2005403855

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{197}}^1\times {\mathrm{1721}}^1$

素因数の和:1956

約数の個数: 48

約数和(自身を含む): 2994957504

約数和(自身を除く): 989553649

約数列:

[1, 5, 7, 13, 35, 65, 91, 169, 197, 455, 845, 985, 1183, 1379, 1721, 2561, 5915, 6895, 8605, 12047, 12805, 17927, 22373, 33293, 60235, 89635, 111865, 156611, 166465, 233051, 290849, 339037, 783055, 1165255, 1454245, 1695185, 2035943, 2373259, 4407481, 10179715, 11866295, 22037405, 30852367, 57297253, 154261835, 286486265, 401080771, 2005403855]

約数ペア:

[(1, 2005403855), (5, 401080771), (7, 286486265), (13, 154261835), (35, 57297253), (65, 30852367), (91, 22037405), (169, 11866295), (197, 10179715), (455, 4407481), (845, 2373259), (985, 2035943), (1183, 1695185), (1379, 1454245), (1721, 1165255), (2561, 783055), (5915, 339037), (6895, 290849), (8605, 233051), (12047, 166465), (12805, 156611), (17927, 111865), (22373, 89635), (33293, 60235)]