278540108

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{129193}}^1$

素因数の和:129222

約数の個数: 36

約数和(自身を含む): 618580872

約数和(自身を除く): 340040764

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 98, 154, 196, 308, 539, 1078, 2156, 129193, 258386, 516772, 904351, 1421123, 1808702, 2842246, 3617404, 5684492, 6330457, 9947861, 12660914, 19895722, 25321828, 39791444, 69635027, 139270054, 278540108]

約数ペア:

[(1, 278540108), (2, 139270054), (4, 69635027), (7, 39791444), (11, 25321828), (14, 19895722), (22, 12660914), (28, 9947861), (44, 6330457), (49, 5684492), (77, 3617404), (98, 2842246), (154, 1808702), (196, 1421123), (308, 904351), (539, 516772), (1078, 258386), (2156, 129193)]