21257303040

素因数分解:

$2^{10}\times 3^4\times 5^1\times {\mathrm{51257}}^1$

素因数の和:51294

約数の個数: 220

約数和(自身を含む): 76175641476

約数和(自身を除く): 54918338436

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, 1024, 1080, 1152, 1280, 1296, 1440, 1536, 1620, 1728, 1920, 2160, 2304, 2560, 2592, 2880, 3072, 3240, 3456, 3840, 4320, 4608, 5120, 5184, 5760, 6480, 6912, 7680, 8640, 9216, 10368, 11520, 12960, 13824, 15360, 17280, 20736, 23040, 25920, 27648, 34560, 41472, 46080, 51257, 51840, 69120, 82944, 102514, 103680, 138240, 153771, 205028, 207360, 256285, 307542, 410056, 414720, 461313, 512570, 615084, 768855, 820112, 922626, 1025140, 1230168, 1383939, 1537710, 1640224, 1845252, 2050280, 2306565, 2460336, 2767878, 3075420, 3280448, 3690504, 4100560, 4151817, 4613130, 4920672, 5535756, 6150840, 6560896, 6919695, 7381008, 8201120, 8303634, 9226260, 9841344, 11071512, 12301680, 13121792, 13839390, 14762016, 16402240, 16607268, 18452520, 19682688, 20759085, 22143024, 24603360, 26243584, 27678780, 29524032, 32804480, 33214536, 36905040, 39365376, 41518170, 44286048, 49206720, 52487168, 55357560, 59048064, 65608960, 66429072, 73810080, 78730752, 83036340, 88572096, 98413440, 110715120, 118096128, 131217920, 132858144, 147620160, 157461504, 166072680, 177144192, 196826880, 221430240, 236192256, 262435840, 265716288, 295240320, 332145360, 354288384, 393653760, 442860480, 472384512, 531432576, 590480640, 664290720, 708576768, 787307520, 885720960, 1062865152, 1180961280, 1328581440, 1417153536, 1771441920, 2125730304, 2361922560, 2657162880, 3542883840, 4251460608, 5314325760, 7085767680, 10628651520, 21257303040]

約数ペア:

[(1, 21257303040), (2, 10628651520), (3, 7085767680), (4, 5314325760), (5, 4251460608), (6, 3542883840), (8, 2657162880), (9, 2361922560), (10, 2125730304), (12, 1771441920), (15, 1417153536), (16, 1328581440), (18, 1180961280), (20, 1062865152), (24, 885720960), (27, 787307520), (30, 708576768), (32, 664290720), (36, 590480640), (40, 531432576), (45, 472384512), (48, 442860480), (54, 393653760), (60, 354288384), (64, 332145360), (72, 295240320), (80, 265716288), (81, 262435840), (90, 236192256), (96, 221430240), (108, 196826880), (120, 177144192), (128, 166072680), (135, 157461504), (144, 147620160), (160, 132858144), (162, 131217920), (180, 118096128), (192, 110715120), (216, 98413440), (240, 88572096), (256, 83036340), (270, 78730752), (288, 73810080), (320, 66429072), (324, 65608960), (360, 59048064), (384, 55357560), (405, 52487168), (432, 49206720), (480, 44286048), (512, 41518170), (540, 39365376), (576, 36905040), (640, 33214536), (648, 32804480), (720, 29524032), (768, 27678780), (810, 26243584), (864, 24603360), (960, 22143024), (1024, 20759085), (1080, 19682688), (1152, 18452520), (1280, 16607268), (1296, 16402240), (1440, 14762016), (1536, 13839390), (1620, 13121792), (1728, 12301680), (1920, 11071512), (2160, 9841344), (2304, 9226260), (2560, 8303634), (2592, 8201120), (2880, 7381008), (3072, 6919695), (3240, 6560896), (3456, 6150840), (3840, 5535756), (4320, 4920672), (4608, 4613130), (5120, 4151817), (5184, 4100560), (5760, 3690504), (6480, 3280448), (6912, 3075420), (7680, 2767878), (8640, 2460336), (9216, 2306565), (10368, 2050280), (11520, 1845252), (12960, 1640224), (13824, 1537710), (15360, 1383939), (17280, 1230168), (20736, 1025140), (23040, 922626), (25920, 820112), (27648, 768855), (34560, 615084), (41472, 512570), (46080, 461313), (51257, 414720), (51840, 410056), (69120, 307542), (82944, 256285), (102514, 207360), (103680, 205028), (138240, 153771)]