20286000000

素因数分解:

$2^7\times 3^2\times 5^6\times 7^2\times {\mathrm{23}}^1$

素因数の和:87

約数の個数: 1008

約数和(自身を含む): 88571522520

約数和(自身を除く): 68285522520

約数列:

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552000, 560000, 562500, 563500, 575000, 579600, 588000, 600000, 603750, 612500, 630000, 644000, 646875, 649152, 656250, 662400, 676200, 690000, 700000, 704375, 705600, 718750, 720000, 721280, 724500, 735000, 750000, 765625, 772800, 784000, 787500, 805000, 811440, 828000, 840000, 845250, 862500, 875000, 882000, 900000, 901600, 905625, 918750, 920000, 927360, 966000, 980000, 984375, 1000000, 1006250, 1008000, 1014300, 1035000, 1050000, 1078125, 1081920, 1102500, 1104000, 1125000, 1127000, 1150000, 1159200, 1176000, 1200000, 1207500, 1225000, 1260000, 1267875, 1288000, 1293750, 1298304, 1312500, 1352400, 1378125, 1380000, 1400000, 1408750, 1411200, 1437500, 1449000, 1470000, 1500000, 1509375, 1531250, 1545600, 1575000, 1610000, 1622880, 1656000, 1680000, 1690500, 1725000, 1750000, 1764000, 1800000, 1803200, 1811250, 1837500, 1840000, 1932000, 1960000, 1968750, 2000000, 2012500, 2028600, 2070000, 2100000, 2113125, 2156250, 2163840, 2205000, 2250000, 2254000, 2296875, 2300000, 2318400, 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約数ペア:

[(1, 20286000000), (2, 10143000000), (3, 6762000000), (4, 5071500000), (5, 4057200000), (6, 3381000000), (7, 2898000000), (8, 2535750000), (9, 2254000000), (10, 2028600000), (12, 1690500000), (14, 1449000000), (15, 1352400000), (16, 1267875000), (18, 1127000000), (20, 1014300000), (21, 966000000), (23, 882000000), (24, 845250000), (25, 811440000), (28, 724500000), (30, 676200000), (32, 633937500), (35, 579600000), (36, 563500000), (40, 507150000), (42, 483000000), (45, 450800000), (46, 441000000), (48, 422625000), (49, 414000000), (50, 405720000), (56, 362250000), (60, 338100000), (63, 322000000), (64, 316968750), (69, 294000000), (70, 289800000), (72, 281750000), (75, 270480000), (80, 253575000), (84, 241500000), (90, 225400000), (92, 220500000), (96, 211312500), (98, 207000000), (100, 202860000), (105, 193200000), (112, 181125000), (115, 176400000), (120, 169050000), (125, 162288000), (126, 161000000), (128, 158484375), (138, 147000000), (140, 144900000), (144, 140875000), (147, 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