1500000000

素因数分解:

$2^8\times 3^1\times 5^9$

素因数の和:64

約数の個数: 180

約数和(自身を含む): 4990233864

約数和(自身を除く): 3490233864

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 32, 40, 48, 50, 60, 64, 75, 80, 96, 100, 120, 125, 128, 150, 160, 192, 200, 240, 250, 256, 300, 320, 375, 384, 400, 480, 500, 600, 625, 640, 750, 768, 800, 960, 1000, 1200, 1250, 1280, 1500, 1600, 1875, 1920, 2000, 2400, 2500, 3000, 3125, 3200, 3750, 3840, 4000, 4800, 5000, 6000, 6250, 6400, 7500, 8000, 9375, 9600, 10000, 12000, 12500, 15000, 15625, 16000, 18750, 19200, 20000, 24000, 25000, 30000, 31250, 32000, 37500, 40000, 46875, 48000, 50000, 60000, 62500, 75000, 78125, 80000, 93750, 96000, 100000, 120000, 125000, 150000, 156250, 160000, 187500, 200000, 234375, 240000, 250000, 300000, 312500, 375000, 390625, 400000, 468750, 480000, 500000, 600000, 625000, 750000, 781250, 800000, 937500, 1000000, 1171875, 1200000, 1250000, 1500000, 1562500, 1875000, 1953125, 2000000, 2343750, 2400000, 2500000, 3000000, 3125000, 3750000, 3906250, 4000000, 4687500, 5000000, 5859375, 6000000, 6250000, 7500000, 7812500, 9375000, 10000000, 11718750, 12000000, 12500000, 15000000, 15625000, 18750000, 20000000, 23437500, 25000000, 30000000, 31250000, 37500000, 46875000, 50000000, 60000000, 62500000, 75000000, 93750000, 100000000, 125000000, 150000000, 187500000, 250000000, 300000000, 375000000, 500000000, 750000000, 1500000000]

約数ペア:

[(1, 1500000000), (2, 750000000), (3, 500000000), (4, 375000000), (5, 300000000), (6, 250000000), (8, 187500000), (10, 150000000), (12, 125000000), (15, 100000000), (16, 93750000), (20, 75000000), (24, 62500000), (25, 60000000), (30, 50000000), (32, 46875000), (40, 37500000), (48, 31250000), (50, 30000000), (60, 25000000), (64, 23437500), (75, 20000000), (80, 18750000), (96, 15625000), (100, 15000000), (120, 12500000), (125, 12000000), (128, 11718750), (150, 10000000), (160, 9375000), (192, 7812500), (200, 7500000), (240, 6250000), (250, 6000000), (256, 5859375), (300, 5000000), (320, 4687500), (375, 4000000), (384, 3906250), (400, 3750000), (480, 3125000), (500, 3000000), (600, 2500000), (625, 2400000), (640, 2343750), (750, 2000000), (768, 1953125), (800, 1875000), (960, 1562500), (1000, 1500000), (1200, 1250000), (1250, 1200000), (1280, 1171875), (1500, 1000000), (1600, 937500), (1875, 800000), (1920, 781250), (2000, 750000), (2400, 625000), (2500, 600000), (3000, 500000), (3125, 480000), (3200, 468750), (3750, 400000), (3840, 390625), (4000, 375000), (4800, 312500), (5000, 300000), (6000, 250000), (6250, 240000), (6400, 234375), (7500, 200000), (8000, 187500), (9375, 160000), (9600, 156250), (10000, 150000), (12000, 125000), (12500, 120000), (15000, 100000), (15625, 96000), (16000, 93750), (18750, 80000), (19200, 78125), (20000, 75000), (24000, 62500), (25000, 60000), (30000, 50000), (31250, 48000), (32000, 46875), (37500, 40000)]