20578482

素因数分解:

$2^1\times 3^3\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{647}}^1$

素因数の和:708

約数の個数: 64

約数和(自身を含む): 49766400

約数和(自身を除く): 29187918

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 31, 38, 54, 57, 62, 93, 114, 171, 186, 279, 342, 513, 558, 589, 647, 837, 1026, 1178, 1294, 1674, 1767, 1941, 3534, 3882, 5301, 5823, 10602, 11646, 12293, 15903, 17469, 20057, 24586, 31806, 34938, 36879, 40114, 60171, 73758, 110637, 120342, 180513, 221274, 331911, 361026, 381083, 541539, 663822, 762166, 1083078, 1143249, 2286498, 3429747, 6859494, 10289241, 20578482]

約数ペア:

[(1, 20578482), (2, 10289241), (3, 6859494), (6, 3429747), (9, 2286498), (18, 1143249), (19, 1083078), (27, 762166), (31, 663822), (38, 541539), (54, 381083), (57, 361026), (62, 331911), (93, 221274), (114, 180513), (171, 120342), (186, 110637), (279, 73758), (342, 60171), (513, 40114), (558, 36879), (589, 34938), (647, 31806), (837, 24586), (1026, 20057), (1178, 17469), (1294, 15903), (1674, 12293), (1767, 11646), (1941, 10602), (3534, 5823), (3882, 5301)]