840390656

素因数分解:

$2^{11}\times 7^1\times {\mathrm{31}}^2\times {\mathrm{61}}^1$

素因数の和:152

約数の個数: 144

約数和(自身を含む): 2016902160

約数和(自身を除く): 1176511504

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 61, 62, 64, 112, 122, 124, 128, 217, 224, 244, 248, 256, 427, 434, 448, 488, 496, 512, 854, 868, 896, 961, 976, 992, 1024, 1708, 1736, 1792, 1891, 1922, 1952, 1984, 2048, 3416, 3472, 3584, 3782, 3844, 3904, 3968, 6727, 6832, 6944, 7168, 7564, 7688, 7808, 7936, 13237, 13454, 13664, 13888, 14336, 15128, 15376, 15616, 15872, 26474, 26908, 27328, 27776, 30256, 30752, 31232, 31744, 52948, 53816, 54656, 55552, 58621, 60512, 61504, 62464, 63488, 105896, 107632, 109312, 111104, 117242, 121024, 123008, 124928, 211792, 215264, 218624, 222208, 234484, 242048, 246016, 410347, 423584, 430528, 437248, 444416, 468968, 484096, 492032, 820694, 847168, 861056, 874496, 937936, 968192, 984064, 1641388, 1694336, 1722112, 1875872, 1936384, 1968128, 3282776, 3388672, 3444224, 3751744, 3872768, 6565552, 6777344, 6888448, 7503488, 13131104, 13554688, 13776896, 15006976, 26262208, 27109376, 30013952, 52524416, 60027904, 105048832, 120055808, 210097664, 420195328, 840390656]

約数ペア:

[(1, 840390656), (2, 420195328), (4, 210097664), (7, 120055808), (8, 105048832), (14, 60027904), (16, 52524416), (28, 30013952), (31, 27109376), (32, 26262208), (56, 15006976), (61, 13776896), (62, 13554688), (64, 13131104), (112, 7503488), (122, 6888448), (124, 6777344), (128, 6565552), (217, 3872768), (224, 3751744), (244, 3444224), (248, 3388672), (256, 3282776), (427, 1968128), (434, 1936384), (448, 1875872), (488, 1722112), (496, 1694336), (512, 1641388), (854, 984064), (868, 968192), (896, 937936), (961, 874496), (976, 861056), (992, 847168), (1024, 820694), (1708, 492032), (1736, 484096), (1792, 468968), (1891, 444416), (1922, 437248), (1952, 430528), (1984, 423584), (2048, 410347), (3416, 246016), (3472, 242048), (3584, 234484), (3782, 222208), (3844, 218624), (3904, 215264), (3968, 211792), (6727, 124928), (6832, 123008), (6944, 121024), (7168, 117242), (7564, 111104), (7688, 109312), (7808, 107632), (7936, 105896), (13237, 63488), (13454, 62464), (13664, 61504), (13888, 60512), (14336, 58621), (15128, 55552), (15376, 54656), (15616, 53816), (15872, 52948), (26474, 31744), (26908, 31232), (27328, 30752), (27776, 30256)]