648739728

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1597}}^1$

素因数の和:1662

約数の個数: 240

約数和(自身を含む): 2308074496

約数和(自身を除く): 1659334768

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 16, 18, 21, 24, 26, 28, 31, 36, 39, 42, 48, 52, 56, 62, 63, 72, 78, 84, 91, 93, 104, 112, 117, 124, 126, 144, 156, 168, 182, 186, 208, 217, 234, 248, 252, 273, 279, 312, 336, 364, 372, 403, 434, 468, 496, 504, 546, 558, 624, 651, 728, 744, 806, 819, 868, 936, 1008, 1092, 1116, 1209, 1302, 1456, 1488, 1597, 1612, 1638, 1736, 1872, 1953, 2184, 2232, 2418, 2604, 2821, 3194, 3224, 3276, 3472, 3627, 3906, 4368, 4464, 4791, 4836, 5208, 5642, 6388, 6448, 6552, 7254, 7812, 8463, 9582, 9672, 10416, 11179, 11284, 12776, 13104, 14373, 14508, 15624, 16926, 19164, 19344, 20761, 22358, 22568, 25389, 25552, 28746, 29016, 31248, 33537, 33852, 38328, 41522, 44716, 45136, 49507, 50778, 57492, 58032, 62283, 67074, 67704, 76656, 83044, 89432, 99014, 100611, 101556, 114984, 124566, 134148, 135408, 145327, 148521, 166088, 178864, 186849, 198028, 201222, 203112, 229968, 249132, 268296, 290654, 297042, 332176, 346549, 373698, 396056, 402444, 406224, 435981, 445563, 498264, 536592, 581308, 594084, 643591, 693098, 747396, 792112, 804888, 871962, 891126, 996528, 1039647, 1162616, 1188168, 1287182, 1307943, 1386196, 1494792, 1609776, 1743924, 1782252, 1930773, 2079294, 2325232, 2376336, 2574364, 2615886, 2772392, 2989584, 3118941, 3487848, 3564504, 3861546, 4158588, 4505137, 5148728, 5231772, 5544784, 5792319, 6237882, 6975696, 7129008, 7723092, 8317176, 9010274, 10297456, 10463544, 11584638, 12475764, 13515411, 15446184, 16634352, 18020548, 20927088, 23169276, 24951528, 27030822, 30892368, 36041096, 40546233, 46338552, 49903056, 54061644, 72082192, 81092466, 92677104, 108123288, 162184932, 216246576, 324369864, 648739728]

約数ペア:

[(1, 648739728), (2, 324369864), (3, 216246576), (4, 162184932), (6, 108123288), (7, 92677104), (8, 81092466), (9, 72082192), (12, 54061644), (13, 49903056), (14, 46338552), (16, 40546233), (18, 36041096), (21, 30892368), (24, 27030822), (26, 24951528), (28, 23169276), (31, 20927088), (36, 18020548), (39, 16634352), (42, 15446184), (48, 13515411), (52, 12475764), (56, 11584638), (62, 10463544), (63, 10297456), (72, 9010274), (78, 8317176), (84, 7723092), (91, 7129008), (93, 6975696), (104, 6237882), (112, 5792319), (117, 5544784), (124, 5231772), (126, 5148728), (144, 4505137), (156, 4158588), (168, 3861546), (182, 3564504), (186, 3487848), (208, 3118941), (217, 2989584), (234, 2772392), (248, 2615886), (252, 2574364), (273, 2376336), (279, 2325232), (312, 2079294), (336, 1930773), (364, 1782252), (372, 1743924), (403, 1609776), (434, 1494792), (468, 1386196), (496, 1307943), (504, 1287182), (546, 1188168), (558, 1162616), (624, 1039647), (651, 996528), (728, 891126), (744, 871962), (806, 804888), (819, 792112), (868, 747396), (936, 693098), (1008, 643591), (1092, 594084), (1116, 581308), (1209, 536592), (1302, 498264), (1456, 445563), (1488, 435981), (1597, 406224), (1612, 402444), (1638, 396056), (1736, 373698), (1872, 346549), (1953, 332176), (2184, 297042), (2232, 290654), (2418, 268296), (2604, 249132), (2821, 229968), (3194, 203112), (3224, 201222), (3276, 198028), (3472, 186849), (3627, 178864), (3906, 166088), (4368, 148521), (4464, 145327), (4791, 135408), (4836, 134148), (5208, 124566), (5642, 114984), (6388, 101556), (6448, 100611), (6552, 99014), (7254, 89432), (7812, 83044), (8463, 76656), (9582, 67704), (9672, 67074), (10416, 62283), (11179, 58032), (11284, 57492), (12776, 50778), (13104, 49507), (14373, 45136), (14508, 44716), (15624, 41522), (16926, 38328), (19164, 33852), (19344, 33537), (20761, 31248), (22358, 29016), (22568, 28746), (25389, 25552)]