30720663

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{107}}^1$

素因数の和:228

約数の個数: 48

約数和(自身を含む): 49870080

約数和(自身を除く): 19149417

約数列:

[1, 3, 9, 19, 23, 57, 69, 73, 107, 171, 207, 219, 321, 437, 657, 963, 1311, 1387, 1679, 2033, 2461, 3933, 4161, 5037, 6099, 7383, 7811, 12483, 15111, 18297, 22149, 23433, 31901, 46759, 70299, 95703, 140277, 148409, 179653, 287109, 420831, 445227, 538959, 1335681, 1616877, 3413407, 10240221, 30720663]

約数ペア:

[(1, 30720663), (3, 10240221), (9, 3413407), (19, 1616877), (23, 1335681), (57, 538959), (69, 445227), (73, 420831), (107, 287109), (171, 179653), (207, 148409), (219, 140277), (321, 95703), (437, 70299), (657, 46759), (963, 31901), (1311, 23433), (1387, 22149), (1679, 18297), (2033, 15111), (2461, 12483), (3933, 7811), (4161, 7383), (5037, 6099)]