900000000

素因数分解:

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

素因数の和:62

約数の個数: 243

約数和(自身を含む): 3243650683

約数和(自身を除く): 2343650683

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, 72, 75, 80, 90, 96, 100, 120, 125, 128, 144, 150, 160, 180, 192, 200, 225, 240, 250, 256, 288, 300, 320, 360, 375, 384, 400, 450, 480, 500, 576, 600, 625, 640, 720, 750, 768, 800, 900, 960, 1000, 1125, 1152, 1200, 1250, 1280, 1440, 1500, 1600, 1800, 1875, 1920, 2000, 2250, 2304, 2400, 2500, 2880, 3000, 3125, 3200, 3600, 3750, 3840, 4000, 4500, 4800, 5000, 5625, 5760, 6000, 6250, 6400, 7200, 7500, 8000, 9000, 9375, 9600, 10000, 11250, 11520, 12000, 12500, 14400, 15000, 15625, 16000, 18000, 18750, 19200, 20000, 22500, 24000, 25000, 28125, 28800, 30000, 31250, 32000, 36000, 37500, 40000, 45000, 46875, 48000, 50000, 56250, 57600, 60000, 62500, 72000, 75000, 78125, 80000, 90000, 93750, 96000, 100000, 112500, 120000, 125000, 140625, 144000, 150000, 156250, 160000, 180000, 187500, 200000, 225000, 234375, 240000, 250000, 281250, 288000, 300000, 312500, 360000, 375000, 390625, 400000, 450000, 468750, 480000, 500000, 562500, 600000, 625000, 703125, 720000, 750000, 781250, 800000, 900000, 937500, 1000000, 1125000, 1171875, 1200000, 1250000, 1406250, 1440000, 1500000, 1562500, 1800000, 1875000, 2000000, 2250000, 2343750, 2400000, 2500000, 2812500, 3000000, 3125000, 3515625, 3600000, 3750000, 4000000, 4500000, 4687500, 5000000, 5625000, 6000000, 6250000, 7031250, 7200000, 7500000, 9000000, 9375000, 10000000, 11250000, 12000000, 12500000, 14062500, 15000000, 18000000, 18750000, 20000000, 22500000, 25000000, 28125000, 30000000, 36000000, 37500000, 45000000, 50000000, 56250000, 60000000, 75000000, 90000000, 100000000, 112500000, 150000000, 180000000, 225000000, 300000000, 450000000, 900000000]

約数ペア:

[(1, 900000000), (2, 450000000), (3, 300000000), (4, 225000000), (5, 180000000), (6, 150000000), (8, 112500000), (9, 100000000), (10, 90000000), (12, 75000000), (15, 60000000), (16, 56250000), (18, 50000000), (20, 45000000), (24, 37500000), (25, 36000000), (30, 30000000), (32, 28125000), (36, 25000000), (40, 22500000), (45, 20000000), (48, 18750000), (50, 18000000), (60, 15000000), (64, 14062500), (72, 12500000), (75, 12000000), (80, 11250000), (90, 10000000), (96, 9375000), (100, 9000000), (120, 7500000), (125, 7200000), (128, 7031250), (144, 6250000), (150, 6000000), (160, 5625000), (180, 5000000), (192, 4687500), (200, 4500000), (225, 4000000), (240, 3750000), (250, 3600000), (256, 3515625), (288, 3125000), (300, 3000000), (320, 2812500), (360, 2500000), (375, 2400000), (384, 2343750), (400, 2250000), (450, 2000000), (480, 1875000), (500, 1800000), (576, 1562500), (600, 1500000), (625, 1440000), (640, 1406250), (720, 1250000), (750, 1200000), (768, 1171875), (800, 1125000), (900, 1000000), (960, 937500), (1000, 900000), (1125, 800000), (1152, 781250), (1200, 750000), (1250, 720000), (1280, 703125), (1440, 625000), (1500, 600000), (1600, 562500), (1800, 500000), (1875, 480000), (1920, 468750), (2000, 450000), (2250, 400000), (2304, 390625), (2400, 375000), (2500, 360000), (2880, 312500), (3000, 300000), (3125, 288000), (3200, 281250), (3600, 250000), (3750, 240000), (3840, 234375), (4000, 225000), (4500, 200000), (4800, 187500), (5000, 180000), (5625, 160000), (5760, 156250), (6000, 150000), (6250, 144000), (6400, 140625), (7200, 125000), (7500, 120000), (8000, 112500), (9000, 100000), (9375, 96000), (9600, 93750), (10000, 90000), (11250, 80000), (11520, 78125), (12000, 75000), (12500, 72000), (14400, 62500), (15000, 60000), (15625, 57600), (16000, 56250), (18000, 50000), (18750, 48000), (19200, 46875), (20000, 45000), (22500, 40000), (24000, 37500), (25000, 36000), (28125, 32000), (28800, 31250)]