1278926768

素因数分解:

$2^4\times 7^1\times {\mathrm{113}}^1\times {\mathrm{139}}^1\times {\mathrm{727}}^1$

素因数の和:994

約数の個数: 80

約数和(自身を含む): 2881482240

約数和(自身を除く): 1602555472

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 113, 139, 226, 278, 452, 556, 727, 791, 904, 973, 1112, 1454, 1582, 1808, 1946, 2224, 2908, 3164, 3892, 5089, 5816, 6328, 7784, 10178, 11632, 12656, 15568, 15707, 20356, 31414, 40712, 62828, 81424, 82151, 101053, 109949, 125656, 164302, 202106, 219898, 251312, 328604, 404212, 439796, 575057, 657208, 707371, 808424, 879592, 1150114, 1314416, 1414742, 1616848, 1759184, 2300228, 2829484, 4600456, 5658968, 9200912, 11317936, 11418989, 22837978, 45675956, 79932923, 91351912, 159865846, 182703824, 319731692, 639463384, 1278926768]

約数ペア:

[(1, 1278926768), (2, 639463384), (4, 319731692), (7, 182703824), (8, 159865846), (14, 91351912), (16, 79932923), (28, 45675956), (56, 22837978), (112, 11418989), (113, 11317936), (139, 9200912), (226, 5658968), (278, 4600456), (452, 2829484), (556, 2300228), (727, 1759184), (791, 1616848), (904, 1414742), (973, 1314416), (1112, 1150114), (1454, 879592), (1582, 808424), (1808, 707371), (1946, 657208), (2224, 575057), (2908, 439796), (3164, 404212), (3892, 328604), (5089, 251312), (5816, 219898), (6328, 202106), (7784, 164302), (10178, 125656), (11632, 109949), (12656, 101053), (15568, 82151), (15707, 81424), (20356, 62828), (31414, 40712)]