780000000

素因数分解:

$2^8\times 3^1\times 5^7\times {\mathrm{13}}^1$

素因数の和:67

約数の個数: 288

約数和(自身を含む): 2794524096

約数和(自身を除く): 2014524096

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 25, 26, 30, 32, 39, 40, 48, 50, 52, 60, 64, 65, 75, 78, 80, 96, 100, 104, 120, 125, 128, 130, 150, 156, 160, 192, 195, 200, 208, 240, 250, 256, 260, 300, 312, 320, 325, 375, 384, 390, 400, 416, 480, 500, 520, 600, 624, 625, 640, 650, 750, 768, 780, 800, 832, 960, 975, 1000, 1040, 1200, 1248, 1250, 1280, 1300, 1500, 1560, 1600, 1625, 1664, 1875, 1920, 1950, 2000, 2080, 2400, 2496, 2500, 2600, 3000, 3120, 3125, 3200, 3250, 3328, 3750, 3840, 3900, 4000, 4160, 4800, 4875, 4992, 5000, 5200, 6000, 6240, 6250, 6400, 6500, 7500, 7800, 8000, 8125, 8320, 9375, 9600, 9750, 9984, 10000, 10400, 12000, 12480, 12500, 13000, 15000, 15600, 15625, 16000, 16250, 16640, 18750, 19200, 19500, 20000, 20800, 24000, 24375, 24960, 25000, 26000, 30000, 31200, 31250, 32000, 32500, 37500, 39000, 40000, 40625, 41600, 46875, 48000, 48750, 49920, 50000, 52000, 60000, 62400, 62500, 65000, 75000, 78000, 78125, 80000, 81250, 83200, 93750, 96000, 97500, 100000, 104000, 120000, 121875, 124800, 125000, 130000, 150000, 156000, 156250, 160000, 162500, 187500, 195000, 200000, 203125, 208000, 234375, 240000, 243750, 249600, 250000, 260000, 300000, 312000, 312500, 325000, 375000, 390000, 400000, 406250, 416000, 468750, 480000, 487500, 500000, 520000, 600000, 609375, 624000, 625000, 650000, 750000, 780000, 800000, 812500, 937500, 975000, 1000000, 1015625, 1040000, 1200000, 1218750, 1248000, 1250000, 1300000, 1500000, 1560000, 1625000, 1875000, 1950000, 2000000, 2031250, 2080000, 2400000, 2437500, 2500000, 2600000, 3000000, 3046875, 3120000, 3250000, 3750000, 3900000, 4000000, 4062500, 4875000, 5000000, 5200000, 6000000, 6093750, 6240000, 6500000, 7500000, 7800000, 8125000, 9750000, 10000000, 10400000, 12000000, 12187500, 13000000, 15000000, 15600000, 16250000, 19500000, 20000000, 24375000, 26000000, 30000000, 31200000, 32500000, 39000000, 48750000, 52000000, 60000000, 65000000, 78000000, 97500000, 130000000, 156000000, 195000000, 260000000, 390000000, 780000000]

約数ペア:

[(1, 780000000), (2, 390000000), (3, 260000000), (4, 195000000), (5, 156000000), (6, 130000000), (8, 97500000), (10, 78000000), (12, 65000000), (13, 60000000), (15, 52000000), (16, 48750000), (20, 39000000), (24, 32500000), (25, 31200000), (26, 30000000), (30, 26000000), (32, 24375000), (39, 20000000), (40, 19500000), (48, 16250000), (50, 15600000), (52, 15000000), (60, 13000000), (64, 12187500), (65, 12000000), (75, 10400000), (78, 10000000), (80, 9750000), (96, 8125000), (100, 7800000), (104, 7500000), (120, 6500000), (125, 6240000), (128, 6093750), (130, 6000000), (150, 5200000), (156, 5000000), (160, 4875000), (192, 4062500), (195, 4000000), (200, 3900000), (208, 3750000), (240, 3250000), (250, 3120000), (256, 3046875), (260, 3000000), (300, 2600000), (312, 2500000), (320, 2437500), (325, 2400000), (375, 2080000), (384, 2031250), (390, 2000000), (400, 1950000), (416, 1875000), (480, 1625000), (500, 1560000), (520, 1500000), (600, 1300000), (624, 1250000), (625, 1248000), (640, 1218750), (650, 1200000), (750, 1040000), (768, 1015625), (780, 1000000), (800, 975000), (832, 937500), (960, 812500), (975, 800000), (1000, 780000), (1040, 750000), (1200, 650000), (1248, 625000), (1250, 624000), (1280, 609375), (1300, 600000), (1500, 520000), (1560, 500000), (1600, 487500), (1625, 480000), (1664, 468750), (1875, 416000), (1920, 406250), (1950, 400000), (2000, 390000), (2080, 375000), (2400, 325000), (2496, 312500), (2500, 312000), (2600, 300000), (3000, 260000), (3120, 250000), (3125, 249600), (3200, 243750), (3250, 240000), (3328, 234375), (3750, 208000), (3840, 203125), (3900, 200000), (4000, 195000), (4160, 187500), (4800, 162500), (4875, 160000), (4992, 156250), (5000, 156000), (5200, 150000), (6000, 130000), (6240, 125000), (6250, 124800), (6400, 121875), (6500, 120000), (7500, 104000), (7800, 100000), (8000, 97500), (8125, 96000), (8320, 93750), (9375, 83200), (9600, 81250), (9750, 80000), (9984, 78125), (10000, 78000), (10400, 75000), (12000, 65000), (12480, 62500), (12500, 62400), (13000, 60000), (15000, 52000), (15600, 50000), (15625, 49920), (16000, 48750), (16250, 48000), (16640, 46875), (18750, 41600), (19200, 40625), (19500, 40000), (20000, 39000), (20800, 37500), (24000, 32500), (24375, 32000), (24960, 31250), (25000, 31200), (26000, 30000)]