1280678400

素因数分解:

$2^9\times 3^2\times 5^2\times {\mathrm{11117}}^1$

素因数の和:11151

約数の個数: 180

約数和(自身を含む): 4583606742

約数和(自身を除く): 3302928342

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, 128, 144, 150, 160, 180, 192, 200, 225, 240, 256, 288, 300, 320, 360, 384, 400, 450, 480, 512, 576, 600, 640, 720, 768, 800, 900, 960, 1152, 1200, 1280, 1440, 1536, 1600, 1800, 1920, 2304, 2400, 2560, 2880, 3200, 3600, 3840, 4608, 4800, 5760, 6400, 7200, 7680, 9600, 11117, 11520, 12800, 14400, 19200, 22234, 23040, 28800, 33351, 38400, 44468, 55585, 57600, 66702, 88936, 100053, 111170, 115200, 133404, 166755, 177872, 200106, 222340, 266808, 277925, 333510, 355744, 400212, 444680, 500265, 533616, 555850, 667020, 711488, 800424, 833775, 889360, 1000530, 1067232, 1111700, 1334040, 1422976, 1600848, 1667550, 1778720, 2001060, 2134464, 2223400, 2501325, 2668080, 2845952, 3201696, 3335100, 3557440, 4002120, 4268928, 4446800, 5002650, 5336160, 5691904, 6403392, 6670200, 7114880, 8004240, 8537856, 8893600, 10005300, 10672320, 12806784, 13340400, 14229760, 16008480, 17075712, 17787200, 20010600, 21344640, 25613568, 26680800, 28459520, 32016960, 35574400, 40021200, 42689280, 51227136, 53361600, 64033920, 71148800, 80042400, 85378560, 106723200, 128067840, 142297600, 160084800, 213446400, 256135680, 320169600, 426892800, 640339200, 1280678400]

約数ペア:

[(1, 1280678400), (2, 640339200), (3, 426892800), (4, 320169600), (5, 256135680), (6, 213446400), (8, 160084800), (9, 142297600), (10, 128067840), (12, 106723200), (15, 85378560), (16, 80042400), (18, 71148800), (20, 64033920), (24, 53361600), (25, 51227136), (30, 42689280), (32, 40021200), (36, 35574400), (40, 32016960), (45, 28459520), (48, 26680800), (50, 25613568), (60, 21344640), (64, 20010600), (72, 17787200), (75, 17075712), (80, 16008480), (90, 14229760), (96, 13340400), (100, 12806784), (120, 10672320), (128, 10005300), (144, 8893600), (150, 8537856), (160, 8004240), (180, 7114880), (192, 6670200), (200, 6403392), (225, 5691904), (240, 5336160), (256, 5002650), (288, 4446800), (300, 4268928), (320, 4002120), (360, 3557440), (384, 3335100), (400, 3201696), (450, 2845952), (480, 2668080), (512, 2501325), (576, 2223400), (600, 2134464), (640, 2001060), (720, 1778720), (768, 1667550), (800, 1600848), (900, 1422976), (960, 1334040), (1152, 1111700), (1200, 1067232), (1280, 1000530), (1440, 889360), (1536, 833775), (1600, 800424), (1800, 711488), (1920, 667020), (2304, 555850), (2400, 533616), (2560, 500265), (2880, 444680), (3200, 400212), (3600, 355744), (3840, 333510), (4608, 277925), (4800, 266808), (5760, 222340), (6400, 200106), (7200, 177872), (7680, 166755), (9600, 133404), (11117, 115200), (11520, 111170), (12800, 100053), (14400, 88936), (19200, 66702), (22234, 57600), (23040, 55585), (28800, 44468), (33351, 38400)]