278565547484

素因数分解:

$2^2\times 7^1\times {\mathrm{68521}}^1\times {\mathrm{145193}}^1$

素因数の和:213725

約数の個数: 24

約数和(自身を含む): 557143063008

約数和(自身を除く): 278577515524

約数列:

[1, 2, 4, 7, 14, 28, 68521, 137042, 145193, 274084, 290386, 479647, 580772, 959294, 1016351, 1918588, 2032702, 4065404, 9948769553, 19897539106, 39795078212, 69641386871, 139282773742, 278565547484]

約数ペア:

[(1, 278565547484), (2, 139282773742), (4, 69641386871), (7, 39795078212), (14, 19897539106), (28, 9948769553), (68521, 4065404), (137042, 2032702), (145193, 1918588), (274084, 1016351), (290386, 959294), (479647, 580772)]