685880000

素因数分解:

$2^6\times 5^4\times {\mathrm{13}}^1\times {\mathrm{1319}}^1$

素因数の和:1364

約数の個数: 140

約数和(自身を含む): 1832975760

約数和(自身を除く): 1147095760

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 80, 100, 104, 125, 130, 160, 200, 208, 250, 260, 320, 325, 400, 416, 500, 520, 625, 650, 800, 832, 1000, 1040, 1250, 1300, 1319, 1600, 1625, 2000, 2080, 2500, 2600, 2638, 3250, 4000, 4160, 5000, 5200, 5276, 6500, 6595, 8000, 8125, 10000, 10400, 10552, 13000, 13190, 16250, 17147, 20000, 20800, 21104, 26000, 26380, 32500, 32975, 34294, 40000, 42208, 52000, 52760, 65000, 65950, 68588, 84416, 85735, 104000, 105520, 130000, 131900, 137176, 164875, 171470, 211040, 260000, 263800, 274352, 329750, 342940, 422080, 428675, 520000, 527600, 548704, 659500, 685880, 824375, 857350, 1055200, 1097408, 1319000, 1371760, 1648750, 1714700, 2110400, 2143375, 2638000, 2743520, 3297500, 3429400, 4286750, 5276000, 5487040, 6595000, 6858800, 8573500, 10552000, 10716875, 13190000, 13717600, 17147000, 21433750, 26380000, 27435200, 34294000, 42867500, 52760000, 68588000, 85735000, 137176000, 171470000, 342940000, 685880000]

約数ペア:

[(1, 685880000), (2, 342940000), (4, 171470000), (5, 137176000), (8, 85735000), (10, 68588000), (13, 52760000), (16, 42867500), (20, 34294000), (25, 27435200), (26, 26380000), (32, 21433750), (40, 17147000), (50, 13717600), (52, 13190000), (64, 10716875), (65, 10552000), (80, 8573500), (100, 6858800), (104, 6595000), (125, 5487040), (130, 5276000), (160, 4286750), (200, 3429400), (208, 3297500), (250, 2743520), (260, 2638000), (320, 2143375), (325, 2110400), (400, 1714700), (416, 1648750), (500, 1371760), (520, 1319000), (625, 1097408), (650, 1055200), (800, 857350), (832, 824375), (1000, 685880), (1040, 659500), (1250, 548704), (1300, 527600), (1319, 520000), (1600, 428675), (1625, 422080), (2000, 342940), (2080, 329750), (2500, 274352), (2600, 263800), (2638, 260000), (3250, 211040), (4000, 171470), (4160, 164875), (5000, 137176), (5200, 131900), (5276, 130000), (6500, 105520), (6595, 104000), (8000, 85735), (8125, 84416), (10000, 68588), (10400, 65950), (10552, 65000), (13000, 52760), (13190, 52000), (16250, 42208), (17147, 40000), (20000, 34294), (20800, 32975), (21104, 32500), (26000, 26380)]