208741456

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^2\times {\mathrm{73}}^1\times {\mathrm{211}}^1$

素因数の和:321

約数の個数: 120

約数和(自身を含む): 517452992

約数和(自身を除く): 308711536

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 73, 77, 88, 112, 121, 146, 154, 176, 211, 242, 292, 308, 422, 484, 511, 584, 616, 803, 844, 847, 968, 1022, 1168, 1232, 1477, 1606, 1688, 1694, 1936, 2044, 2321, 2954, 3212, 3376, 3388, 4088, 4642, 5621, 5908, 6424, 6776, 8176, 8833, 9284, 11242, 11816, 12848, 13552, 15403, 16247, 17666, 18568, 22484, 23632, 25531, 30806, 32494, 35332, 37136, 44968, 51062, 61612, 61831, 64988, 70664, 89936, 102124, 107821, 123224, 123662, 129976, 141328, 169433, 178717, 204248, 215642, 246448, 247324, 259952, 338866, 357434, 408496, 431284, 494648, 677732, 714868, 862568, 989296, 1186031, 1355464, 1429736, 1725136, 1863763, 2372062, 2710928, 2859472, 3727526, 4744124, 7455052, 9488248, 13046341, 14910104, 18976496, 26092682, 29820208, 52185364, 104370728, 208741456]

約数ペア:

[(1, 208741456), (2, 104370728), (4, 52185364), (7, 29820208), (8, 26092682), (11, 18976496), (14, 14910104), (16, 13046341), (22, 9488248), (28, 7455052), (44, 4744124), (56, 3727526), (73, 2859472), (77, 2710928), (88, 2372062), (112, 1863763), (121, 1725136), (146, 1429736), (154, 1355464), (176, 1186031), (211, 989296), (242, 862568), (292, 714868), (308, 677732), (422, 494648), (484, 431284), (511, 408496), (584, 357434), (616, 338866), (803, 259952), (844, 247324), (847, 246448), (968, 215642), (1022, 204248), (1168, 178717), (1232, 169433), (1477, 141328), (1606, 129976), (1688, 123662), (1694, 123224), (1936, 107821), (2044, 102124), (2321, 89936), (2954, 70664), (3212, 64988), (3376, 61831), (3388, 61612), (4088, 51062), (4642, 44968), (5621, 37136), (5908, 35332), (6424, 32494), (6776, 30806), (8176, 25531), (8833, 23632), (9284, 22484), (11242, 18568), (11816, 17666), (12848, 16247), (13552, 15403)]