261445016

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{245719}}^1$

素因数の和:245751

約数の個数: 32

約数和(自身を含む): 589728000

約数和(自身を除く): 328282984

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 133, 152, 266, 532, 1064, 245719, 491438, 982876, 1720033, 1965752, 3440066, 4668661, 6880132, 9337322, 13760264, 18674644, 32680627, 37349288, 65361254, 130722508, 261445016]

約数ペア:

[(1, 261445016), (2, 130722508), (4, 65361254), (7, 37349288), (8, 32680627), (14, 18674644), (19, 13760264), (28, 9337322), (38, 6880132), (56, 4668661), (76, 3440066), (133, 1965752), (152, 1720033), (266, 982876), (532, 491438), (1064, 245719)]