287605087

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{251}}^1\times {\mathrm{647}}^1$

素因数の和:939

約数の個数: 32

約数和(自身を含む): 376233984

約数和(自身を除く): 88628897

約数列:

[1, 7, 11, 23, 77, 161, 251, 253, 647, 1757, 1771, 2761, 4529, 5773, 7117, 14881, 19327, 40411, 49819, 63503, 104167, 162397, 163691, 444521, 1136779, 1145837, 1786367, 3735131, 12504569, 26145917, 41086441, 287605087]

約数ペア:

[(1, 287605087), (7, 41086441), (11, 26145917), (23, 12504569), (77, 3735131), (161, 1786367), (251, 1145837), (253, 1136779), (647, 444521), (1757, 163691), (1771, 162397), (2761, 104167), (4529, 63503), (5773, 49819), (7117, 40411), (14881, 19327)]