78647517

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3931}}^1$

素因数の和:3975

約数の個数: 40

約数和(自身を含む): 133216160

約数和(自身を除く): 54568643

約数列:

[1, 3, 9, 13, 19, 27, 39, 57, 81, 117, 171, 247, 351, 513, 741, 1053, 1539, 2223, 3931, 6669, 11793, 20007, 35379, 51103, 74689, 106137, 153309, 224067, 318411, 459927, 672201, 970957, 1379781, 2016603, 2912871, 4139343, 6049809, 8738613, 26215839, 78647517]

約数ペア:

[(1, 78647517), (3, 26215839), (9, 8738613), (13, 6049809), (19, 4139343), (27, 2912871), (39, 2016603), (57, 1379781), (81, 970957), (117, 672201), (171, 459927), (247, 318411), (351, 224067), (513, 153309), (741, 106137), (1053, 74689), (1539, 51103), (2223, 35379), (3931, 20007), (6669, 11793)]