20456879982

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{271}}^1\times {\mathrm{1499}}^1$

素因数の和:1902

約数の個数: 128

約数和(自身を含む): 51701760000

約数和(自身を除く): 31244880018

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 42, 66, 77, 109, 154, 218, 231, 271, 327, 462, 542, 654, 763, 813, 1199, 1499, 1526, 1626, 1897, 2289, 2398, 2981, 2998, 3597, 3794, 4497, 4578, 5691, 5962, 7194, 8393, 8943, 8994, 10493, 11382, 16489, 16786, 17886, 20867, 20986, 25179, 29539, 31479, 32978, 41734, 49467, 50358, 59078, 62601, 62958, 88617, 98934, 115423, 125202, 163391, 177234, 206773, 230846, 324929, 326782, 346269, 406229, 413546, 490173, 620319, 649858, 692538, 812458, 974787, 980346, 1143737, 1218687, 1240638, 1797301, 1949574, 2274503, 2287474, 2437374, 2843603, 3431211, 3594602, 4468519, 4549006, 5391903, 5687206, 6823509, 6862422, 8530809, 8937038, 10783806, 12581107, 13405557, 13647018, 17061618, 25162214, 26811114, 31279633, 37743321, 44278961, 62559266, 75486642, 88557922, 93838899, 132836883, 187677798, 265673766, 309952727, 487068571, 619905454, 929858181, 974137142, 1461205713, 1859716362, 2922411426, 3409479997, 6818959994, 10228439991, 20456879982]

約数ペア:

[(1, 20456879982), (2, 10228439991), (3, 6818959994), (6, 3409479997), (7, 2922411426), (11, 1859716362), (14, 1461205713), (21, 974137142), (22, 929858181), (33, 619905454), (42, 487068571), (66, 309952727), (77, 265673766), (109, 187677798), (154, 132836883), (218, 93838899), (231, 88557922), (271, 75486642), (327, 62559266), (462, 44278961), (542, 37743321), (654, 31279633), (763, 26811114), (813, 25162214), (1199, 17061618), (1499, 13647018), (1526, 13405557), (1626, 12581107), (1897, 10783806), (2289, 8937038), (2398, 8530809), (2981, 6862422), (2998, 6823509), (3597, 5687206), (3794, 5391903), (4497, 4549006), (4578, 4468519), (5691, 3594602), (5962, 3431211), (7194, 2843603), (8393, 2437374), (8943, 2287474), (8994, 2274503), (10493, 1949574), (11382, 1797301), (16489, 1240638), (16786, 1218687), (17886, 1143737), (20867, 980346), (20986, 974787), (25179, 812458), (29539, 692538), (31479, 649858), (32978, 620319), (41734, 490173), (49467, 413546), (50358, 406229), (59078, 346269), (62601, 326782), (62958, 324929), (88617, 230846), (98934, 206773), (115423, 177234), (125202, 163391)]