128940160

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{97}}^1$

素因数の和:214

約数の個数: 128

約数和(自身を含む): 326269440

約数和(自身を除く): 197329280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 67, 80, 97, 124, 128, 134, 155, 160, 194, 248, 268, 310, 320, 335, 388, 485, 496, 536, 620, 640, 670, 776, 970, 992, 1072, 1240, 1340, 1552, 1940, 1984, 2077, 2144, 2480, 2680, 3007, 3104, 3880, 3968, 4154, 4288, 4960, 5360, 6014, 6208, 6499, 7760, 8308, 8576, 9920, 10385, 10720, 12028, 12416, 12998, 15035, 15520, 16616, 19840, 20770, 21440, 24056, 25996, 30070, 31040, 32495, 33232, 41540, 42880, 48112, 51992, 60140, 62080, 64990, 66464, 83080, 96224, 103984, 120280, 129980, 132928, 166160, 192448, 201469, 207968, 240560, 259960, 265856, 332320, 384896, 402938, 415936, 481120, 519920, 664640, 805876, 831872, 962240, 1007345, 1039840, 1329280, 1611752, 1924480, 2014690, 2079680, 3223504, 4029380, 4159360, 6447008, 8058760, 12894016, 16117520, 25788032, 32235040, 64470080, 128940160]

約数ペア:

[(1, 128940160), (2, 64470080), (4, 32235040), (5, 25788032), (8, 16117520), (10, 12894016), (16, 8058760), (20, 6447008), (31, 4159360), (32, 4029380), (40, 3223504), (62, 2079680), (64, 2014690), (67, 1924480), (80, 1611752), (97, 1329280), (124, 1039840), (128, 1007345), (134, 962240), (155, 831872), (160, 805876), (194, 664640), (248, 519920), (268, 481120), (310, 415936), (320, 402938), (335, 384896), (388, 332320), (485, 265856), (496, 259960), (536, 240560), (620, 207968), (640, 201469), (670, 192448), (776, 166160), (970, 132928), (992, 129980), (1072, 120280), (1240, 103984), (1340, 96224), (1552, 83080), (1940, 66464), (1984, 64990), (2077, 62080), (2144, 60140), (2480, 51992), (2680, 48112), (3007, 42880), (3104, 41540), (3880, 33232), (3968, 32495), (4154, 31040), (4288, 30070), (4960, 25996), (5360, 24056), (6014, 21440), (6208, 20770), (6499, 19840), (7760, 16616), (8308, 15520), (8576, 15035), (9920, 12998), (10385, 12416), (10720, 12028)]