About the Number

388385280

388385279 ← → 388385281

2進数表記:10111001001100100101000000000

漢数字表記:三億八千八百三十八万五千二百八十

素因数分解:

2 9 × 3 4 × 5 1 × 1873 1

素因数の和:1908
約数の個数: 200
約数和(自身を含む): 1391816052
約数和(自身を除く): 1003430772

約数列:
[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 81, 90, 96, 108, 120, 128, 135, 144, 160, 162, 180, 192, 216, 240, 256, 270, 288, 320, 324, 360, 384, 405, 432, 480, 512, 540, 576, 640, 648, 720, 768, 810, 864, 960, 1080, 1152, 1280, 1296, 1440, 1536, 1620, 1728, 1873, 1920, 2160, 2304, 2560, 2592, 2880, 3240, 3456, 3746, 3840, 4320, 4608, 5184, 5619, 5760, 6480, 6912, 7492, 7680, 8640, 9365, 10368, 11238, 11520, 12960, 13824, 14984, 16857, 17280, 18730, 20736, 22476, 23040, 25920, 28095, 29968, 33714, 34560, 37460, 41472, 44952, 50571, 51840, 56190, 59936, 67428, 69120, 74920, 84285, 89904, 101142, 103680, 112380, 119872, 134856, 149840, 151713, 168570, 179808, 202284, 207360, 224760, 239744, 252855, 269712, 299680, 303426, 337140, 359616, 404568, 449520, 479488, 505710, 539424, 599360, 606852, 674280, 719232, 758565, 809136, 899040, 958976, 1011420, 1078848, 1198720, 1213704, 1348560, 1438464, 1517130, 1618272, 1798080, 2022840, 2157696, 2397440, 2427408, 2697120, 2876928, 3034260, 3236544, 3596160, 4045680, 4315392, 4794880, 4854816, 5394240, 6068520, 6473088, 7192320, 8091360, 8630784, 9709632, 10788480, 12137040, 12946176, 14384640, 16182720, 19419264, 21576960, 24274080, 25892352, 32365440, 38838528, 43153920, 48548160, 64730880, 77677056, 97096320, 129461760, 194192640, 388385280]

約数ペア:
[(1, 388385280), (2, 194192640), (3, 129461760), (4, 97096320), (5, 77677056), (6, 64730880), (8, 48548160), (9, 43153920), (10, 38838528), (12, 32365440), (15, 25892352), (16, 24274080), (18, 21576960), (20, 19419264), (24, 16182720), (27, 14384640), (30, 12946176), (32, 12137040), (36, 10788480), (40, 9709632), (45, 8630784), (48, 8091360), (54, 7192320), (60, 6473088), (64, 6068520), (72, 5394240), (80, 4854816), (81, 4794880), (90, 4315392), (96, 4045680), (108, 3596160), (120, 3236544), (128, 3034260), (135, 2876928), (144, 2697120), (160, 2427408), (162, 2397440), (180, 2157696), (192, 2022840), (216, 1798080), (240, 1618272), (256, 1517130), (270, 1438464), (288, 1348560), (320, 1213704), (324, 1198720), (360, 1078848), (384, 1011420), (405, 958976), (432, 899040), (480, 809136), (512, 758565), (540, 719232), (576, 674280), (640, 606852), (648, 599360), (720, 539424), (768, 505710), (810, 479488), (864, 449520), (960, 404568), (1080, 359616), (1152, 337140), (1280, 303426), (1296, 299680), (1440, 269712), (1536, 252855), (1620, 239744), (1728, 224760), (1873, 207360), (1920, 202284), (2160, 179808), (2304, 168570), (2560, 151713), (2592, 149840), (2880, 134856), (3240, 119872), (3456, 112380), (3746, 103680), (3840, 101142), (4320, 89904), (4608, 84285), (5184, 74920), (5619, 69120), (5760, 67428), (6480, 59936), (6912, 56190), (7492, 51840), (7680, 50571), (8640, 44952), (9365, 41472), (10368, 37460), (11238, 34560), (11520, 33714), (12960, 29968), (13824, 28095), (14984, 25920), (16857, 23040), (17280, 22476), (18730, 20736)]

このpageの処理時間: 0.010766983032226562 seconds