1329280000

素因数分解:

$2^{10}\times 5^4\times {\mathrm{31}}^1\times {\mathrm{67}}^1$

素因数の和:138

約数の個数: 220

約数和(自身を含む): 3478786432

約数和(自身を除く): 2149506432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 64, 67, 80, 100, 124, 125, 128, 134, 155, 160, 200, 248, 250, 256, 268, 310, 320, 335, 400, 496, 500, 512, 536, 620, 625, 640, 670, 775, 800, 992, 1000, 1024, 1072, 1240, 1250, 1280, 1340, 1550, 1600, 1675, 1984, 2000, 2077, 2144, 2480, 2500, 2560, 2680, 3100, 3200, 3350, 3875, 3968, 4000, 4154, 4288, 4960, 5000, 5120, 5360, 6200, 6400, 6700, 7750, 7936, 8000, 8308, 8375, 8576, 9920, 10000, 10385, 10720, 12400, 12800, 13400, 15500, 15872, 16000, 16616, 16750, 17152, 19375, 19840, 20000, 20770, 21440, 24800, 25600, 26800, 31000, 31744, 32000, 33232, 33500, 34304, 38750, 39680, 40000, 41540, 41875, 42880, 49600, 51925, 53600, 62000, 64000, 66464, 67000, 68608, 77500, 79360, 80000, 83080, 83750, 85760, 99200, 103850, 107200, 124000, 128000, 132928, 134000, 155000, 158720, 160000, 166160, 167500, 171520, 198400, 207700, 214400, 248000, 259625, 265856, 268000, 310000, 320000, 332320, 335000, 343040, 396800, 415400, 428800, 496000, 519250, 531712, 536000, 620000, 640000, 664640, 670000, 793600, 830800, 857600, 992000, 1038500, 1063424, 1072000, 1240000, 1298125, 1329280, 1340000, 1661600, 1715200, 1984000, 2077000, 2126848, 2144000, 2480000, 2596250, 2658560, 2680000, 3323200, 3968000, 4154000, 4288000, 4960000, 5192500, 5317120, 5360000, 6646400, 8308000, 8576000, 9920000, 10385000, 10634240, 10720000, 13292800, 16616000, 19840000, 20770000, 21440000, 26585600, 33232000, 41540000, 42880000, 53171200, 66464000, 83080000, 132928000, 166160000, 265856000, 332320000, 664640000, 1329280000]

約数ペア:

[(1, 1329280000), (2, 664640000), (4, 332320000), (5, 265856000), (8, 166160000), (10, 132928000), (16, 83080000), (20, 66464000), (25, 53171200), (31, 42880000), (32, 41540000), (40, 33232000), (50, 26585600), (62, 21440000), (64, 20770000), (67, 19840000), (80, 16616000), (100, 13292800), (124, 10720000), (125, 10634240), (128, 10385000), (134, 9920000), (155, 8576000), (160, 8308000), (200, 6646400), (248, 5360000), (250, 5317120), (256, 5192500), (268, 4960000), (310, 4288000), (320, 4154000), (335, 3968000), (400, 3323200), (496, 2680000), (500, 2658560), (512, 2596250), (536, 2480000), (620, 2144000), (625, 2126848), (640, 2077000), (670, 1984000), (775, 1715200), (800, 1661600), (992, 1340000), (1000, 1329280), (1024, 1298125), (1072, 1240000), (1240, 1072000), (1250, 1063424), (1280, 1038500), (1340, 992000), (1550, 857600), (1600, 830800), (1675, 793600), (1984, 670000), (2000, 664640), (2077, 640000), (2144, 620000), (2480, 536000), (2500, 531712), (2560, 519250), (2680, 496000), (3100, 428800), (3200, 415400), (3350, 396800), (3875, 343040), (3968, 335000), (4000, 332320), (4154, 320000), (4288, 310000), (4960, 268000), (5000, 265856), (5120, 259625), (5360, 248000), (6200, 214400), (6400, 207700), (6700, 198400), (7750, 171520), (7936, 167500), (8000, 166160), (8308, 160000), (8375, 158720), (8576, 155000), (9920, 134000), (10000, 132928), (10385, 128000), (10720, 124000), (12400, 107200), (12800, 103850), (13400, 99200), (15500, 85760), (15872, 83750), (16000, 83080), (16616, 80000), (16750, 79360), (17152, 77500), (19375, 68608), (19840, 67000), (20000, 66464), (20770, 64000), (21440, 62000), (24800, 53600), (25600, 51925), (26800, 49600), (31000, 42880), (31744, 41875), (32000, 41540), (33232, 40000), (33500, 39680), (34304, 38750)]