20580078

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{167}}^1$

素因数の和:261

約数の個数: 64

約数和(自身を含む): 46448640

約数和(自身を除く): 25868562

約数列:

[1, 2, 3, 6, 19, 23, 38, 46, 47, 57, 69, 94, 114, 138, 141, 167, 282, 334, 437, 501, 874, 893, 1002, 1081, 1311, 1786, 2162, 2622, 2679, 3173, 3243, 3841, 5358, 6346, 6486, 7682, 7849, 9519, 11523, 15698, 19038, 20539, 23046, 23547, 41078, 47094, 61617, 72979, 123234, 145958, 149131, 180527, 218937, 298262, 361054, 437874, 447393, 541581, 894786, 1083162, 3430013, 6860026, 10290039, 20580078]

約数ペア:

[(1, 20580078), (2, 10290039), (3, 6860026), (6, 3430013), (19, 1083162), (23, 894786), (38, 541581), (46, 447393), (47, 437874), (57, 361054), (69, 298262), (94, 218937), (114, 180527), (138, 149131), (141, 145958), (167, 123234), (282, 72979), (334, 61617), (437, 47094), (501, 41078), (874, 23547), (893, 23046), (1002, 20539), (1081, 19038), (1311, 15698), (1786, 11523), (2162, 9519), (2622, 7849), (2679, 7682), (3173, 6486), (3243, 6346), (3841, 5358)]