7887948509

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{1171}}^1$

素因数の和:1390

約数の個数: 48

約数和(自身を含む): 9876303360

約数和(自身を除く): 1988354851

約数列:

[1, 7, 23, 43, 49, 139, 161, 301, 973, 989, 1127, 1171, 2107, 3197, 5977, 6811, 6923, 8197, 22379, 26933, 41839, 48461, 50353, 57379, 137471, 156653, 162769, 188531, 292873, 352471, 962297, 1139383, 1158119, 1319717, 2467297, 3743687, 6736079, 6999067, 7975681, 8106833, 26205809, 48993469, 56747831, 160978541, 183440663, 342954283, 1126849787, 7887948509]

約数ペア:

[(1, 7887948509), (7, 1126849787), (23, 342954283), (43, 183440663), (49, 160978541), (139, 56747831), (161, 48993469), (301, 26205809), (973, 8106833), (989, 7975681), (1127, 6999067), (1171, 6736079), (2107, 3743687), (3197, 2467297), (5977, 1319717), (6811, 1158119), (6923, 1139383), (8197, 962297), (22379, 352471), (26933, 292873), (41839, 188531), (48461, 162769), (50353, 156653), (57379, 137471)]