261935366

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{659}}^1$

素因数の和:797

約数の個数: 64

約数和(自身を含む): 513216000

約数和(自身を除く): 251280634

約数列:

[1, 2, 7, 11, 14, 22, 29, 58, 77, 89, 154, 178, 203, 319, 406, 623, 638, 659, 979, 1246, 1318, 1958, 2233, 2581, 4466, 4613, 5162, 6853, 7249, 9226, 13706, 14498, 18067, 19111, 28391, 36134, 38222, 50743, 56782, 58651, 101486, 117302, 133777, 198737, 210221, 267554, 397474, 410557, 420442, 645161, 821114, 1290322, 1471547, 1700879, 2943094, 3401758, 4516127, 9032254, 11906153, 18709669, 23812306, 37419338, 130967683, 261935366]

約数ペア:

[(1, 261935366), (2, 130967683), (7, 37419338), (11, 23812306), (14, 18709669), (22, 11906153), (29, 9032254), (58, 4516127), (77, 3401758), (89, 2943094), (154, 1700879), (178, 1471547), (203, 1290322), (319, 821114), (406, 645161), (623, 420442), (638, 410557), (659, 397474), (979, 267554), (1246, 210221), (1318, 198737), (1958, 133777), (2233, 117302), (2581, 101486), (4466, 58651), (4613, 56782), (5162, 50743), (6853, 38222), (7249, 36134), (9226, 28391), (13706, 19111), (14498, 18067)]