8130815

素因数分解:

$5^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{431}}^1$

素因数の和:468

約数の個数: 32

約数和(自身を含む): 12441600

約数和(自身を除く): 4310785

約数列:

[1, 5, 7, 11, 35, 49, 55, 77, 245, 343, 385, 431, 539, 1715, 2155, 2695, 3017, 3773, 4741, 15085, 18865, 21119, 23705, 33187, 105595, 147833, 165935, 232309, 739165, 1161545, 1626163, 8130815]

約数ペア:

[(1, 8130815), (5, 1626163), (7, 1161545), (11, 739165), (35, 232309), (49, 165935), (55, 147833), (77, 105595), (245, 33187), (343, 23705), (385, 21119), (431, 18865), (539, 15085), (1715, 4741), (2155, 3773), (2695, 3017)]