1278000000

素因数分解:

$2^7\times 3^2\times 5^6\times {\mathrm{71}}^1$

素因数の和:121

約数の個数: 336

約数和(自身を含む): 4661659080

約数和(自身を除く): 3383659080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 30, 32, 36, 40, 45, 48, 50, 60, 64, 71, 72, 75, 80, 90, 96, 100, 120, 125, 128, 142, 144, 150, 160, 180, 192, 200, 213, 225, 240, 250, 284, 288, 300, 320, 355, 360, 375, 384, 400, 426, 450, 480, 500, 568, 576, 600, 625, 639, 640, 710, 720, 750, 800, 852, 900, 960, 1000, 1065, 1125, 1136, 1152, 1200, 1250, 1278, 1420, 1440, 1500, 1600, 1704, 1775, 1800, 1875, 1920, 2000, 2130, 2250, 2272, 2400, 2500, 2556, 2840, 2880, 3000, 3125, 3195, 3200, 3408, 3550, 3600, 3750, 4000, 4260, 4500, 4544, 4800, 5000, 5112, 5325, 5625, 5680, 5760, 6000, 6250, 6390, 6816, 7100, 7200, 7500, 8000, 8520, 8875, 9000, 9088, 9375, 9600, 10000, 10224, 10650, 11250, 11360, 12000, 12500, 12780, 13632, 14200, 14400, 15000, 15625, 15975, 16000, 17040, 17750, 18000, 18750, 20000, 20448, 21300, 22500, 22720, 24000, 25000, 25560, 26625, 27264, 28125, 28400, 28800, 30000, 31250, 31950, 34080, 35500, 36000, 37500, 40000, 40896, 42600, 44375, 45000, 45440, 46875, 48000, 50000, 51120, 53250, 56250, 56800, 60000, 62500, 63900, 68160, 71000, 72000, 75000, 79875, 80000, 81792, 85200, 88750, 90000, 93750, 100000, 102240, 106500, 112500, 113600, 120000, 125000, 127800, 133125, 136320, 140625, 142000, 144000, 150000, 159750, 170400, 177500, 180000, 187500, 200000, 204480, 213000, 221875, 225000, 227200, 240000, 250000, 255600, 266250, 281250, 284000, 300000, 319500, 340800, 355000, 360000, 375000, 399375, 400000, 408960, 426000, 443750, 450000, 500000, 511200, 532500, 562500, 568000, 600000, 639000, 665625, 681600, 710000, 720000, 750000, 798750, 852000, 887500, 900000, 1000000, 1022400, 1065000, 1109375, 1125000, 1136000, 1200000, 1278000, 1331250, 1420000, 1500000, 1597500, 1704000, 1775000, 1800000, 1996875, 2000000, 2044800, 2130000, 2218750, 2250000, 2556000, 2662500, 2840000, 3000000, 3195000, 3328125, 3408000, 3550000, 3600000, 3993750, 4260000, 4437500, 4500000, 5112000, 5325000, 5680000, 6000000, 6390000, 6656250, 7100000, 7987500, 8520000, 8875000, 9000000, 9984375, 10224000, 10650000, 12780000, 13312500, 14200000, 15975000, 17040000, 17750000, 18000000, 19968750, 21300000, 25560000, 26625000, 28400000, 31950000, 35500000, 39937500, 42600000, 51120000, 53250000, 63900000, 71000000, 79875000, 85200000, 106500000, 127800000, 142000000, 159750000, 213000000, 255600000, 319500000, 426000000, 639000000, 1278000000]

約数ペア:

[(1, 1278000000), (2, 639000000), (3, 426000000), (4, 319500000), (5, 255600000), (6, 213000000), (8, 159750000), (9, 142000000), (10, 127800000), (12, 106500000), (15, 85200000), (16, 79875000), (18, 71000000), (20, 63900000), (24, 53250000), (25, 51120000), (30, 42600000), (32, 39937500), (36, 35500000), (40, 31950000), (45, 28400000), (48, 26625000), (50, 25560000), (60, 21300000), (64, 19968750), (71, 18000000), (72, 17750000), (75, 17040000), (80, 15975000), (90, 14200000), (96, 13312500), (100, 12780000), (120, 10650000), (125, 10224000), (128, 9984375), (142, 9000000), (144, 8875000), (150, 8520000), (160, 7987500), (180, 7100000), (192, 6656250), (200, 6390000), (213, 6000000), (225, 5680000), (240, 5325000), (250, 5112000), (284, 4500000), (288, 4437500), (300, 4260000), (320, 3993750), (355, 3600000), (360, 3550000), (375, 3408000), (384, 3328125), (400, 3195000), (426, 3000000), (450, 2840000), (480, 2662500), (500, 2556000), (568, 2250000), (576, 2218750), (600, 2130000), (625, 2044800), (639, 2000000), (640, 1996875), (710, 1800000), (720, 1775000), (750, 1704000), (800, 1597500), (852, 1500000), (900, 1420000), (960, 1331250), (1000, 1278000), (1065, 1200000), (1125, 1136000), (1136, 1125000), (1152, 1109375), (1200, 1065000), (1250, 1022400), (1278, 1000000), (1420, 900000), (1440, 887500), (1500, 852000), (1600, 798750), (1704, 750000), (1775, 720000), (1800, 710000), (1875, 681600), (1920, 665625), (2000, 639000), (2130, 600000), (2250, 568000), (2272, 562500), (2400, 532500), (2500, 511200), (2556, 500000), (2840, 450000), (2880, 443750), (3000, 426000), (3125, 408960), (3195, 400000), (3200, 399375), (3408, 375000), (3550, 360000), (3600, 355000), (3750, 340800), (4000, 319500), (4260, 300000), (4500, 284000), (4544, 281250), (4800, 266250), (5000, 255600), (5112, 250000), (5325, 240000), (5625, 227200), (5680, 225000), (5760, 221875), (6000, 213000), (6250, 204480), (6390, 200000), (6816, 187500), (7100, 180000), (7200, 177500), (7500, 170400), (8000, 159750), (8520, 150000), (8875, 144000), (9000, 142000), (9088, 140625), (9375, 136320), (9600, 133125), (10000, 127800), (10224, 125000), (10650, 120000), (11250, 113600), (11360, 112500), (12000, 106500), (12500, 102240), (12780, 100000), (13632, 93750), (14200, 90000), (14400, 88750), (15000, 85200), (15625, 81792), (15975, 80000), (16000, 79875), (17040, 75000), (17750, 72000), (18000, 71000), (18750, 68160), (20000, 63900), (20448, 62500), (21300, 60000), (22500, 56800), (22720, 56250), (24000, 53250), (25000, 51120), (25560, 50000), (26625, 48000), (27264, 46875), (28125, 45440), (28400, 45000), (28800, 44375), (30000, 42600), (31250, 40896), (31950, 40000), (34080, 37500), (35500, 36000)]