291527720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1$

素因数の和:160

約数の個数: 192

約数和(自身を含む): 781401600

約数和(自身を除く): 489873880

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 29, 31, 40, 44, 55, 58, 62, 67, 88, 110, 116, 121, 124, 134, 145, 155, 220, 232, 242, 248, 268, 290, 310, 319, 335, 341, 440, 484, 536, 580, 605, 620, 638, 670, 682, 737, 899, 968, 1160, 1210, 1240, 1276, 1340, 1364, 1474, 1595, 1705, 1798, 1943, 2077, 2420, 2552, 2680, 2728, 2948, 3190, 3410, 3509, 3596, 3685, 3751, 3886, 4154, 4495, 4840, 5896, 6380, 6820, 7018, 7192, 7370, 7502, 7772, 8107, 8308, 8990, 9715, 9889, 10385, 12760, 13640, 14036, 14740, 15004, 15544, 16214, 16616, 17545, 17980, 18755, 19430, 19778, 20770, 21373, 22847, 28072, 29480, 30008, 32428, 35090, 35960, 37510, 38860, 39556, 40535, 41540, 42746, 45694, 49445, 60233, 64856, 70180, 75020, 77720, 79112, 81070, 83080, 85492, 91388, 98890, 106865, 108779, 114235, 120466, 140360, 150040, 162140, 170984, 182776, 197780, 213730, 217558, 228470, 235103, 240932, 251317, 301165, 324280, 395560, 427460, 435116, 456940, 470206, 481864, 502634, 543895, 602330, 662563, 854920, 870232, 913880, 940412, 1005268, 1087790, 1175515, 1204660, 1256585, 1325126, 1880824, 2010536, 2175580, 2351030, 2409320, 2513170, 2650252, 3312815, 4351160, 4702060, 5026340, 5300504, 6625630, 7288193, 9404120, 10052680, 13251260, 14576386, 26502520, 29152772, 36440965, 58305544, 72881930, 145763860, 291527720]

約数ペア:

[(1, 291527720), (2, 145763860), (4, 72881930), (5, 58305544), (8, 36440965), (10, 29152772), (11, 26502520), (20, 14576386), (22, 13251260), (29, 10052680), (31, 9404120), (40, 7288193), (44, 6625630), (55, 5300504), (58, 5026340), (62, 4702060), (67, 4351160), (88, 3312815), (110, 2650252), (116, 2513170), (121, 2409320), (124, 2351030), (134, 2175580), (145, 2010536), (155, 1880824), (220, 1325126), (232, 1256585), (242, 1204660), (248, 1175515), (268, 1087790), (290, 1005268), (310, 940412), (319, 913880), (335, 870232), (341, 854920), (440, 662563), (484, 602330), (536, 543895), (580, 502634), (605, 481864), (620, 470206), (638, 456940), (670, 435116), (682, 427460), (737, 395560), (899, 324280), (968, 301165), (1160, 251317), (1210, 240932), (1240, 235103), (1276, 228470), (1340, 217558), (1364, 213730), (1474, 197780), (1595, 182776), (1705, 170984), (1798, 162140), (1943, 150040), (2077, 140360), (2420, 120466), (2552, 114235), (2680, 108779), (2728, 106865), (2948, 98890), (3190, 91388), (3410, 85492), (3509, 83080), (3596, 81070), (3685, 79112), (3751, 77720), (3886, 75020), (4154, 70180), (4495, 64856), (4840, 60233), (5896, 49445), (6380, 45694), (6820, 42746), (7018, 41540), (7192, 40535), (7370, 39556), (7502, 38860), (7772, 37510), (8107, 35960), (8308, 35090), (8990, 32428), (9715, 30008), (9889, 29480), (10385, 28072), (12760, 22847), (13640, 21373), (14036, 20770), (14740, 19778), (15004, 19430), (15544, 18755), (16214, 17980), (16616, 17545)]