257431086

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{107}}^1\times {\mathrm{419}}^1$

素因数の和:574

約数の個数: 96

約数和(自身を含む): 636854400

約数和(自身を除く): 379423314

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 29, 33, 58, 66, 87, 99, 107, 174, 198, 214, 261, 319, 321, 419, 522, 638, 642, 838, 957, 963, 1177, 1257, 1914, 1926, 2354, 2514, 2871, 3103, 3531, 3771, 4609, 5742, 6206, 7062, 7542, 9218, 9309, 10593, 12151, 13827, 18618, 21186, 24302, 27654, 27927, 34133, 36453, 41481, 44833, 55854, 68266, 72906, 82962, 89666, 102399, 109359, 133661, 134499, 204798, 218718, 267322, 268998, 307197, 400983, 403497, 493163, 614394, 801966, 806994, 986326, 1202949, 1300157, 1479489, 2405898, 2600314, 2958978, 3900471, 4438467, 7800942, 8876934, 11701413, 14301727, 23402826, 28603454, 42905181, 85810362, 128715543, 257431086]

約数ペア:

[(1, 257431086), (2, 128715543), (3, 85810362), (6, 42905181), (9, 28603454), (11, 23402826), (18, 14301727), (22, 11701413), (29, 8876934), (33, 7800942), (58, 4438467), (66, 3900471), (87, 2958978), (99, 2600314), (107, 2405898), (174, 1479489), (198, 1300157), (214, 1202949), (261, 986326), (319, 806994), (321, 801966), (419, 614394), (522, 493163), (638, 403497), (642, 400983), (838, 307197), (957, 268998), (963, 267322), (1177, 218718), (1257, 204798), (1914, 134499), (1926, 133661), (2354, 109359), (2514, 102399), (2871, 89666), (3103, 82962), (3531, 72906), (3771, 68266), (4609, 55854), (5742, 44833), (6206, 41481), (7062, 36453), (7542, 34133), (9218, 27927), (9309, 27654), (10593, 24302), (12151, 21186), (13827, 18618)]