123456000

素因数分解:

$2^9\times 3^1\times 5^3\times {\mathrm{643}}^1$

素因数の和:679

約数の個数: 160

約数和(自身を含む): 411098688

約数和(自身を除く): 287642688

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, 512, 600, 640, 643, 750, 768, 800, 960, 1000, 1200, 1280, 1286, 1500, 1536, 1600, 1920, 1929, 2000, 2400, 2560, 2572, 3000, 3200, 3215, 3840, 3858, 4000, 4800, 5144, 6000, 6400, 6430, 7680, 7716, 8000, 9600, 9645, 10288, 12000, 12800, 12860, 15432, 16000, 16075, 19200, 19290, 20576, 24000, 25720, 30864, 32000, 32150, 38400, 38580, 41152, 48000, 48225, 51440, 61728, 64000, 64300, 77160, 80375, 82304, 96000, 96450, 102880, 123456, 128600, 154320, 160750, 164608, 192000, 192900, 205760, 241125, 246912, 257200, 308640, 321500, 329216, 385800, 411520, 482250, 493824, 514400, 617280, 643000, 771600, 823040, 964500, 987648, 1028800, 1234560, 1286000, 1543200, 1646080, 1929000, 2057600, 2469120, 2572000, 3086400, 3858000, 4115200, 4938240, 5144000, 6172800, 7716000, 8230400, 10288000, 12345600, 15432000, 20576000, 24691200, 30864000, 41152000, 61728000, 123456000]

約数ペア:

[(1, 123456000), (2, 61728000), (3, 41152000), (4, 30864000), (5, 24691200), (6, 20576000), (8, 15432000), (10, 12345600), (12, 10288000), (15, 8230400), (16, 7716000), (20, 6172800), (24, 5144000), (25, 4938240), (30, 4115200), (32, 3858000), (40, 3086400), (48, 2572000), (50, 2469120), (60, 2057600), (64, 1929000), (75, 1646080), (80, 1543200), (96, 1286000), (100, 1234560), (120, 1028800), (125, 987648), (128, 964500), (150, 823040), (160, 771600), (192, 643000), (200, 617280), (240, 514400), (250, 493824), (256, 482250), (300, 411520), (320, 385800), (375, 329216), (384, 321500), (400, 308640), (480, 257200), (500, 246912), (512, 241125), (600, 205760), (640, 192900), (643, 192000), (750, 164608), (768, 160750), (800, 154320), (960, 128600), (1000, 123456), (1200, 102880), (1280, 96450), (1286, 96000), (1500, 82304), (1536, 80375), (1600, 77160), (1920, 64300), (1929, 64000), (2000, 61728), (2400, 51440), (2560, 48225), (2572, 48000), (3000, 41152), (3200, 38580), (3215, 38400), (3840, 32150), (3858, 32000), (4000, 30864), (4800, 25720), (5144, 24000), (6000, 20576), (6400, 19290), (6430, 19200), (7680, 16075), (7716, 16000), (8000, 15432), (9600, 12860), (9645, 12800), (10288, 12000)]