20405721061

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{311}}^1\times {\mathrm{313}}^1$

素因数の和:730

約数の個数: 64

約数和(自身を含む): 25393305600

約数和(自身を除く): 4987584539

約数列:

[1, 11, 17, 19, 59, 187, 209, 311, 313, 323, 649, 1003, 1121, 3421, 3443, 3553, 5287, 5321, 5909, 5947, 11033, 12331, 18349, 18467, 19057, 58157, 58531, 64999, 65417, 97343, 100453, 101099, 201839, 203137, 209627, 311933, 313939, 348631, 350873, 1070773, 1104983, 1112089, 1654831, 1849517, 3431263, 3453329, 3834941, 3859603, 5743237, 5926727, 5964841, 18203141, 20344687, 31441789, 63175607, 65193997, 65613251, 97635029, 109121503, 345859679, 1073985319, 1200336533, 1855065551, 20405721061]

約数ペア:

[(1, 20405721061), (11, 1855065551), (17, 1200336533), (19, 1073985319), (59, 345859679), (187, 109121503), (209, 97635029), (311, 65613251), (313, 65193997), (323, 63175607), (649, 31441789), (1003, 20344687), (1121, 18203141), (3421, 5964841), (3443, 5926727), (3553, 5743237), (5287, 3859603), (5321, 3834941), (5909, 3453329), (5947, 3431263), (11033, 1849517), (12331, 1654831), (18349, 1112089), (18467, 1104983), (19057, 1070773), (58157, 350873), (58531, 348631), (64999, 313939), (65417, 311933), (97343, 209627), (100453, 203137), (101099, 201839)]