1918000000

素因数分解:

$2^7\times 5^6\times 7^1\times {\mathrm{137}}^1$

素因数の和:188

約数の個数: 224

約数和(自身を含む): 5498367120

約数和(自身を除く): 3580367120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 50, 56, 64, 70, 80, 100, 112, 125, 128, 137, 140, 160, 175, 200, 224, 250, 274, 280, 320, 350, 400, 448, 500, 548, 560, 625, 640, 685, 700, 800, 875, 896, 959, 1000, 1096, 1120, 1250, 1370, 1400, 1600, 1750, 1918, 2000, 2192, 2240, 2500, 2740, 2800, 3125, 3200, 3425, 3500, 3836, 4000, 4375, 4384, 4480, 4795, 5000, 5480, 5600, 6250, 6850, 7000, 7672, 8000, 8750, 8768, 9590, 10000, 10960, 11200, 12500, 13700, 14000, 15344, 15625, 16000, 17125, 17500, 17536, 19180, 20000, 21875, 21920, 22400, 23975, 25000, 27400, 28000, 30688, 31250, 34250, 35000, 38360, 40000, 43750, 43840, 47950, 50000, 54800, 56000, 61376, 62500, 68500, 70000, 76720, 80000, 85625, 87500, 87680, 95900, 100000, 109375, 109600, 112000, 119875, 122752, 125000, 137000, 140000, 153440, 171250, 175000, 191800, 200000, 218750, 219200, 239750, 250000, 274000, 280000, 306880, 342500, 350000, 383600, 400000, 428125, 437500, 438400, 479500, 500000, 548000, 560000, 599375, 613760, 685000, 700000, 767200, 856250, 875000, 959000, 1000000, 1096000, 1198750, 1370000, 1400000, 1534400, 1712500, 1750000, 1918000, 2000000, 2140625, 2192000, 2397500, 2740000, 2800000, 2996875, 3068800, 3425000, 3500000, 3836000, 4281250, 4795000, 5480000, 5993750, 6850000, 7000000, 7672000, 8562500, 9590000, 10960000, 11987500, 13700000, 14000000, 14984375, 15344000, 17125000, 19180000, 23975000, 27400000, 29968750, 34250000, 38360000, 47950000, 54800000, 59937500, 68500000, 76720000, 95900000, 119875000, 137000000, 191800000, 239750000, 274000000, 383600000, 479500000, 959000000, 1918000000]

約数ペア:

[(1, 1918000000), (2, 959000000), (4, 479500000), (5, 383600000), (7, 274000000), (8, 239750000), (10, 191800000), (14, 137000000), (16, 119875000), (20, 95900000), (25, 76720000), (28, 68500000), (32, 59937500), (35, 54800000), (40, 47950000), (50, 38360000), (56, 34250000), (64, 29968750), (70, 27400000), (80, 23975000), (100, 19180000), (112, 17125000), (125, 15344000), (128, 14984375), (137, 14000000), (140, 13700000), (160, 11987500), (175, 10960000), (200, 9590000), (224, 8562500), (250, 7672000), (274, 7000000), (280, 6850000), (320, 5993750), (350, 5480000), (400, 4795000), (448, 4281250), (500, 3836000), (548, 3500000), (560, 3425000), (625, 3068800), (640, 2996875), (685, 2800000), (700, 2740000), (800, 2397500), (875, 2192000), (896, 2140625), (959, 2000000), (1000, 1918000), (1096, 1750000), (1120, 1712500), (1250, 1534400), (1370, 1400000), (1400, 1370000), (1600, 1198750), (1750, 1096000), (1918, 1000000), (2000, 959000), (2192, 875000), (2240, 856250), (2500, 767200), (2740, 700000), (2800, 685000), (3125, 613760), (3200, 599375), (3425, 560000), (3500, 548000), (3836, 500000), (4000, 479500), (4375, 438400), (4384, 437500), (4480, 428125), (4795, 400000), (5000, 383600), (5480, 350000), (5600, 342500), (6250, 306880), (6850, 280000), (7000, 274000), (7672, 250000), (8000, 239750), (8750, 219200), (8768, 218750), (9590, 200000), (10000, 191800), (10960, 175000), (11200, 171250), (12500, 153440), (13700, 140000), (14000, 137000), (15344, 125000), (15625, 122752), (16000, 119875), (17125, 112000), (17500, 109600), (17536, 109375), (19180, 100000), (20000, 95900), (21875, 87680), (21920, 87500), (22400, 85625), (23975, 80000), (25000, 76720), (27400, 70000), (28000, 68500), (30688, 62500), (31250, 61376), (34250, 56000), (35000, 54800), (38360, 50000), (40000, 47950), (43750, 43840)]