6440000000

素因数分解:

$2^9\times 5^7\times 7^1\times {\mathrm{23}}^1$

素因数の和:83

約数の個数: 320

約数和(自身を含む): 19181200896

約数和(自身を除く): 12741200896

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 25, 28, 32, 35, 40, 46, 50, 56, 64, 70, 80, 92, 100, 112, 115, 125, 128, 140, 160, 161, 175, 184, 200, 224, 230, 250, 256, 280, 320, 322, 350, 368, 400, 448, 460, 500, 512, 560, 575, 625, 640, 644, 700, 736, 800, 805, 875, 896, 920, 1000, 1120, 1150, 1250, 1280, 1288, 1400, 1472, 1600, 1610, 1750, 1792, 1840, 2000, 2240, 2300, 2500, 2560, 2576, 2800, 2875, 2944, 3125, 3200, 3220, 3500, 3584, 3680, 4000, 4025, 4375, 4480, 4600, 5000, 5152, 5600, 5750, 5888, 6250, 6400, 6440, 7000, 7360, 8000, 8050, 8750, 8960, 9200, 10000, 10304, 11200, 11500, 11776, 12500, 12800, 12880, 14000, 14375, 14720, 15625, 16000, 16100, 17500, 17920, 18400, 20000, 20125, 20608, 21875, 22400, 23000, 25000, 25760, 28000, 28750, 29440, 31250, 32000, 32200, 35000, 36800, 40000, 40250, 41216, 43750, 44800, 46000, 50000, 51520, 56000, 57500, 58880, 62500, 64000, 64400, 70000, 71875, 73600, 78125, 80000, 80500, 82432, 87500, 89600, 92000, 100000, 100625, 103040, 109375, 112000, 115000, 125000, 128800, 140000, 143750, 147200, 156250, 160000, 161000, 175000, 184000, 200000, 201250, 206080, 218750, 224000, 230000, 250000, 257600, 280000, 287500, 294400, 312500, 320000, 322000, 350000, 359375, 368000, 400000, 402500, 412160, 437500, 448000, 460000, 500000, 503125, 515200, 546875, 560000, 575000, 625000, 644000, 700000, 718750, 736000, 800000, 805000, 875000, 920000, 1000000, 1006250, 1030400, 1093750, 1120000, 1150000, 1250000, 1288000, 1400000, 1437500, 1472000, 1600000, 1610000, 1750000, 1796875, 1840000, 2000000, 2012500, 2060800, 2187500, 2240000, 2300000, 2500000, 2515625, 2576000, 2800000, 2875000, 3220000, 3500000, 3593750, 3680000, 4000000, 4025000, 4375000, 4600000, 5000000, 5031250, 5152000, 5600000, 5750000, 6440000, 7000000, 7187500, 7360000, 8000000, 8050000, 8750000, 9200000, 10000000, 10062500, 10304000, 11200000, 11500000, 12578125, 12880000, 14000000, 14375000, 16100000, 17500000, 18400000, 20000000, 20125000, 23000000, 25156250, 25760000, 28000000, 28750000, 32200000, 35000000, 36800000, 40000000, 40250000, 46000000, 50312500, 51520000, 56000000, 57500000, 64400000, 70000000, 80500000, 92000000, 100625000, 115000000, 128800000, 140000000, 161000000, 184000000, 201250000, 230000000, 257600000, 280000000, 322000000, 402500000, 460000000, 644000000, 805000000, 920000000, 1288000000, 1610000000, 3220000000, 6440000000]

約数ペア:

[(1, 6440000000), (2, 3220000000), (4, 1610000000), (5, 1288000000), (7, 920000000), (8, 805000000), (10, 644000000), (14, 460000000), (16, 402500000), (20, 322000000), (23, 280000000), (25, 257600000), (28, 230000000), (32, 201250000), (35, 184000000), (40, 161000000), (46, 140000000), (50, 128800000), (56, 115000000), (64, 100625000), (70, 92000000), (80, 80500000), (92, 70000000), (100, 64400000), (112, 57500000), (115, 56000000), (125, 51520000), (128, 50312500), (140, 46000000), (160, 40250000), (161, 40000000), (175, 36800000), (184, 35000000), (200, 32200000), (224, 28750000), (230, 28000000), (250, 25760000), (256, 25156250), (280, 23000000), (320, 20125000), (322, 20000000), (350, 18400000), (368, 17500000), (400, 16100000), (448, 14375000), (460, 14000000), (500, 12880000), (512, 12578125), (560, 11500000), (575, 11200000), (625, 10304000), (640, 10062500), (644, 10000000), (700, 9200000), (736, 8750000), (800, 8050000), (805, 8000000), (875, 7360000), (896, 7187500), (920, 7000000), (1000, 6440000), (1120, 5750000), (1150, 5600000), (1250, 5152000), (1280, 5031250), (1288, 5000000), (1400, 4600000), (1472, 4375000), (1600, 4025000), (1610, 4000000), (1750, 3680000), (1792, 3593750), (1840, 3500000), (2000, 3220000), (2240, 2875000), (2300, 2800000), (2500, 2576000), (2560, 2515625), (2576, 2500000), (2800, 2300000), (2875, 2240000), (2944, 2187500), (3125, 2060800), (3200, 2012500), (3220, 2000000), (3500, 1840000), (3584, 1796875), (3680, 1750000), (4000, 1610000), (4025, 1600000), (4375, 1472000), (4480, 1437500), (4600, 1400000), (5000, 1288000), (5152, 1250000), (5600, 1150000), (5750, 1120000), (5888, 1093750), (6250, 1030400), (6400, 1006250), (6440, 1000000), (7000, 920000), (7360, 875000), (8000, 805000), (8050, 800000), (8750, 736000), (8960, 718750), (9200, 700000), (10000, 644000), (10304, 625000), (11200, 575000), (11500, 560000), (11776, 546875), (12500, 515200), (12800, 503125), (12880, 500000), (14000, 460000), (14375, 448000), (14720, 437500), (15625, 412160), (16000, 402500), (16100, 400000), (17500, 368000), (17920, 359375), (18400, 350000), (20000, 322000), (20125, 320000), (20608, 312500), (21875, 294400), (22400, 287500), (23000, 280000), (25000, 257600), (25760, 250000), (28000, 230000), (28750, 224000), (29440, 218750), (31250, 206080), (32000, 201250), (32200, 200000), (35000, 184000), (36800, 175000), (40000, 161000), (40250, 160000), (41216, 156250), (43750, 147200), (44800, 143750), (46000, 140000), (50000, 128800), (51520, 125000), (56000, 115000), (57500, 112000), (58880, 109375), (62500, 103040), (64000, 100625), (64400, 100000), (70000, 92000), (71875, 89600), (73600, 87500), (78125, 82432), (80000, 80500)]