721978488

素因数分解:

$2^3\times 3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{523}}^1$

素因数の和:639

約数の個数: 256

約数和(自身を含む): 2535321600

約数和(自身を除く): 1813343112

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 11, 12, 14, 18, 21, 22, 24, 27, 28, 33, 36, 42, 44, 54, 56, 63, 66, 72, 77, 83, 84, 88, 99, 108, 126, 132, 154, 166, 168, 189, 198, 216, 231, 249, 252, 264, 297, 308, 332, 378, 396, 462, 498, 504, 523, 581, 594, 616, 664, 693, 747, 756, 792, 913, 924, 996, 1046, 1162, 1188, 1386, 1494, 1512, 1569, 1743, 1826, 1848, 1992, 2079, 2092, 2241, 2324, 2376, 2739, 2772, 2988, 3138, 3486, 3652, 3661, 4158, 4184, 4482, 4648, 4707, 5229, 5478, 5544, 5753, 5976, 6276, 6391, 6972, 7304, 7322, 8217, 8316, 8964, 9414, 10458, 10956, 10983, 11506, 12552, 12782, 13944, 14121, 14644, 15687, 16434, 16632, 17259, 17928, 18828, 19173, 20916, 21912, 21966, 23012, 24651, 25564, 28242, 29288, 31374, 32868, 32949, 34518, 37656, 38346, 40271, 41832, 43409, 43932, 46024, 49302, 51128, 51777, 56484, 57519, 62748, 65736, 65898, 69036, 76692, 80542, 86818, 87864, 98604, 98847, 103554, 112968, 115038, 120813, 125496, 130227, 131796, 138072, 153384, 155331, 161084, 172557, 173636, 197208, 197694, 207108, 230076, 241626, 260454, 263592, 303863, 310662, 322168, 345114, 347272, 362439, 390681, 395388, 414216, 460152, 477499, 483252, 520908, 607726, 621324, 690228, 724878, 781362, 790776, 911589, 954998, 966504, 1041816, 1087317, 1172043, 1215452, 1242648, 1380456, 1432497, 1449756, 1562724, 1823178, 1909996, 2174634, 2344086, 2430904, 2734767, 2864994, 2899512, 3125448, 3342493, 3646356, 3819992, 4297491, 4349268, 4688172, 5469534, 5729988, 6684986, 7292712, 8204301, 8594982, 8698536, 9376344, 10027479, 10939068, 11459976, 12892473, 13369972, 16408602, 17189964, 20054958, 21878136, 25784946, 26739944, 30082437, 32817204, 34379928, 40109916, 51569892, 60164874, 65634408, 80219832, 90247311, 103139784, 120329748, 180494622, 240659496, 360989244, 721978488]

約数ペア:

[(1, 721978488), (2, 360989244), (3, 240659496), (4, 180494622), (6, 120329748), (7, 103139784), (8, 90247311), (9, 80219832), (11, 65634408), (12, 60164874), (14, 51569892), (18, 40109916), (21, 34379928), (22, 32817204), (24, 30082437), (27, 26739944), (28, 25784946), (33, 21878136), (36, 20054958), (42, 17189964), (44, 16408602), (54, 13369972), (56, 12892473), (63, 11459976), (66, 10939068), (72, 10027479), (77, 9376344), (83, 8698536), (84, 8594982), (88, 8204301), (99, 7292712), (108, 6684986), (126, 5729988), (132, 5469534), (154, 4688172), (166, 4349268), (168, 4297491), (189, 3819992), (198, 3646356), (216, 3342493), (231, 3125448), (249, 2899512), (252, 2864994), (264, 2734767), (297, 2430904), (308, 2344086), (332, 2174634), (378, 1909996), (396, 1823178), (462, 1562724), (498, 1449756), (504, 1432497), (523, 1380456), (581, 1242648), (594, 1215452), (616, 1172043), (664, 1087317), (693, 1041816), (747, 966504), (756, 954998), (792, 911589), (913, 790776), (924, 781362), (996, 724878), (1046, 690228), (1162, 621324), (1188, 607726), (1386, 520908), (1494, 483252), (1512, 477499), (1569, 460152), (1743, 414216), (1826, 395388), (1848, 390681), (1992, 362439), (2079, 347272), (2092, 345114), (2241, 322168), (2324, 310662), (2376, 303863), (2739, 263592), (2772, 260454), (2988, 241626), (3138, 230076), (3486, 207108), (3652, 197694), (3661, 197208), (4158, 173636), (4184, 172557), (4482, 161084), (4648, 155331), (4707, 153384), (5229, 138072), (5478, 131796), (5544, 130227), (5753, 125496), (5976, 120813), (6276, 115038), (6391, 112968), (6972, 103554), (7304, 98847), (7322, 98604), (8217, 87864), (8316, 86818), (8964, 80542), (9414, 76692), (10458, 69036), (10956, 65898), (10983, 65736), (11506, 62748), (12552, 57519), (12782, 56484), (13944, 51777), (14121, 51128), (14644, 49302), (15687, 46024), (16434, 43932), (16632, 43409), (17259, 41832), (17928, 40271), (18828, 38346), (19173, 37656), (20916, 34518), (21912, 32949), (21966, 32868), (23012, 31374), (24651, 29288), (25564, 28242)]