1328508728

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{137}}^1\times {\mathrm{487}}^1$

素因数の和:780

約数の個数: 64

約数和(自身を含む): 2666822400

約数和(自身を除く): 1338313672

約数列:

[1, 2, 4, 8, 19, 38, 76, 131, 137, 152, 262, 274, 487, 524, 548, 974, 1048, 1096, 1948, 2489, 2603, 3896, 4978, 5206, 9253, 9956, 10412, 17947, 18506, 19912, 20824, 35894, 37012, 63797, 66719, 71788, 74024, 127594, 133438, 143576, 255188, 266876, 340993, 510376, 533752, 681986, 1212143, 1267661, 1363972, 2424286, 2535322, 2727944, 4848572, 5070644, 8740189, 9697144, 10141288, 17480378, 34960756, 69921512, 166063591, 332127182, 664254364, 1328508728]

約数ペア:

[(1, 1328508728), (2, 664254364), (4, 332127182), (8, 166063591), (19, 69921512), (38, 34960756), (76, 17480378), (131, 10141288), (137, 9697144), (152, 8740189), (262, 5070644), (274, 4848572), (487, 2727944), (524, 2535322), (548, 2424286), (974, 1363972), (1048, 1267661), (1096, 1212143), (1948, 681986), (2489, 533752), (2603, 510376), (3896, 340993), (4978, 266876), (5206, 255188), (9253, 143576), (9956, 133438), (10412, 127594), (17947, 74024), (18506, 71788), (19912, 66719), (20824, 63797), (35894, 37012)]