21990251520

素因数分解:

$2^{10}\times 3^3\times 5^1\times {\mathrm{159073}}^1$

素因数の和:159107

約数の個数: 176

約数和(自身を含む): 78149874720

約数和(自身を除く): 56159623200

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, 90, 96, 108, 120, 128, 135, 144, 160, 180, 192, 216, 240, 256, 270, 288, 320, 360, 384, 432, 480, 512, 540, 576, 640, 720, 768, 864, 960, 1024, 1080, 1152, 1280, 1440, 1536, 1728, 1920, 2160, 2304, 2560, 2880, 3072, 3456, 3840, 4320, 4608, 5120, 5760, 6912, 7680, 8640, 9216, 11520, 13824, 15360, 17280, 23040, 27648, 34560, 46080, 69120, 138240, 159073, 318146, 477219, 636292, 795365, 954438, 1272584, 1431657, 1590730, 1908876, 2386095, 2545168, 2863314, 3181460, 3817752, 4294971, 4772190, 5090336, 5726628, 6362920, 7158285, 7635504, 8589942, 9544380, 10180672, 11453256, 12725840, 14316570, 15271008, 17179884, 19088760, 20361344, 21474855, 22906512, 25451680, 28633140, 30542016, 34359768, 38177520, 40722688, 42949710, 45813024, 50903360, 57266280, 61084032, 68719536, 76355040, 81445376, 85899420, 91626048, 101806720, 114532560, 122168064, 137439072, 152710080, 162890752, 171798840, 183252096, 203613440, 229065120, 244336128, 274878144, 305420160, 343597680, 366504192, 407226880, 458130240, 488672256, 549756288, 610840320, 687195360, 733008384, 814453760, 916260480, 1099512576, 1221680640, 1374390720, 1466016768, 1832520960, 2199025152, 2443361280, 2748781440, 3665041920, 4398050304, 5497562880, 7330083840, 10995125760, 21990251520]

約数ペア:

[(1, 21990251520), (2, 10995125760), (3, 7330083840), (4, 5497562880), (5, 4398050304), (6, 3665041920), (8, 2748781440), (9, 2443361280), (10, 2199025152), (12, 1832520960), (15, 1466016768), (16, 1374390720), (18, 1221680640), (20, 1099512576), (24, 916260480), (27, 814453760), (30, 733008384), (32, 687195360), (36, 610840320), (40, 549756288), (45, 488672256), (48, 458130240), (54, 407226880), (60, 366504192), (64, 343597680), (72, 305420160), (80, 274878144), (90, 244336128), (96, 229065120), (108, 203613440), (120, 183252096), (128, 171798840), (135, 162890752), (144, 152710080), (160, 137439072), (180, 122168064), (192, 114532560), (216, 101806720), (240, 91626048), (256, 85899420), (270, 81445376), (288, 76355040), (320, 68719536), (360, 61084032), (384, 57266280), (432, 50903360), (480, 45813024), (512, 42949710), (540, 40722688), (576, 38177520), (640, 34359768), (720, 30542016), (768, 28633140), (864, 25451680), (960, 22906512), (1024, 21474855), (1080, 20361344), (1152, 19088760), (1280, 17179884), (1440, 15271008), (1536, 14316570), (1728, 12725840), (1920, 11453256), (2160, 10180672), (2304, 9544380), (2560, 8589942), (2880, 7635504), (3072, 7158285), (3456, 6362920), (3840, 5726628), (4320, 5090336), (4608, 4772190), (5120, 4294971), (5760, 3817752), (6912, 3181460), (7680, 2863314), (8640, 2545168), (9216, 2386095), (11520, 1908876), (13824, 1590730), (15360, 1431657), (17280, 1272584), (23040, 954438), (27648, 795365), (34560, 636292), (46080, 477219), (69120, 318146), (138240, 159073)]