1345808840

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1\times {\mathrm{127}}^1$

素因数の和:343

約数の個数: 128

約数和(自身を含む): 3205509120

約数和(自身を除く): 1859700280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 61, 86, 101, 122, 127, 172, 202, 215, 244, 254, 305, 344, 404, 430, 488, 505, 508, 610, 635, 808, 860, 1010, 1016, 1220, 1270, 1720, 2020, 2440, 2540, 2623, 4040, 4343, 5080, 5246, 5461, 6161, 7747, 8686, 10492, 10922, 12322, 12827, 13115, 15494, 17372, 20984, 21715, 21844, 24644, 25654, 26230, 27305, 30805, 30988, 34744, 38735, 43430, 43688, 49288, 51308, 52460, 54610, 61610, 61976, 64135, 77470, 86860, 102616, 104920, 109220, 123220, 128270, 154940, 173720, 218440, 246440, 256540, 264923, 309880, 333121, 513080, 529846, 551561, 666242, 782447, 1059692, 1103122, 1324615, 1332484, 1564894, 1665605, 2119384, 2206244, 2649230, 2664968, 2757805, 3129788, 3331210, 3912235, 4412488, 5298460, 5515610, 6259576, 6662420, 7824470, 10596920, 11031220, 13324840, 15648940, 22062440, 31297880, 33645221, 67290442, 134580884, 168226105, 269161768, 336452210, 672904420, 1345808840]

約数ペア:

[(1, 1345808840), (2, 672904420), (4, 336452210), (5, 269161768), (8, 168226105), (10, 134580884), (20, 67290442), (40, 33645221), (43, 31297880), (61, 22062440), (86, 15648940), (101, 13324840), (122, 11031220), (127, 10596920), (172, 7824470), (202, 6662420), (215, 6259576), (244, 5515610), (254, 5298460), (305, 4412488), (344, 3912235), (404, 3331210), (430, 3129788), (488, 2757805), (505, 2664968), (508, 2649230), (610, 2206244), (635, 2119384), (808, 1665605), (860, 1564894), (1010, 1332484), (1016, 1324615), (1220, 1103122), (1270, 1059692), (1720, 782447), (2020, 666242), (2440, 551561), (2540, 529846), (2623, 513080), (4040, 333121), (4343, 309880), (5080, 264923), (5246, 256540), (5461, 246440), (6161, 218440), (7747, 173720), (8686, 154940), (10492, 128270), (10922, 123220), (12322, 109220), (12827, 104920), (13115, 102616), (15494, 86860), (17372, 77470), (20984, 64135), (21715, 61976), (21844, 61610), (24644, 54610), (25654, 52460), (26230, 51308), (27305, 49288), (30805, 43688), (30988, 43430), (34744, 38735)]