21781215360

素因数分解:

$2^7\times 3^3\times 5^1\times {\mathrm{1260487}}^1$

素因数の和:1260515

約数の個数: 128

約数和(自身を含む): 77141865600

約数和(自身を除く): 55360650240

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, 270, 288, 320, 360, 384, 432, 480, 540, 576, 640, 720, 864, 960, 1080, 1152, 1440, 1728, 1920, 2160, 2880, 3456, 4320, 5760, 8640, 17280, 1260487, 2520974, 3781461, 5041948, 6302435, 7562922, 10083896, 11344383, 12604870, 15125844, 18907305, 20167792, 22688766, 25209740, 30251688, 34033149, 37814610, 40335584, 45377532, 50419480, 56721915, 60503376, 68066298, 75629220, 80671168, 90755064, 100838960, 113443830, 121006752, 136132596, 151258440, 161342336, 170165745, 181510128, 201677920, 226887660, 242013504, 272265192, 302516880, 340331490, 363020256, 403355840, 453775320, 484027008, 544530384, 605033760, 680662980, 726040512, 806711680, 907550640, 1089060768, 1210067520, 1361325960, 1452081024, 1815101280, 2178121536, 2420135040, 2722651920, 3630202560, 4356243072, 5445303840, 7260405120, 10890607680, 21781215360]

約数ペア:

[(1, 21781215360), (2, 10890607680), (3, 7260405120), (4, 5445303840), (5, 4356243072), (6, 3630202560), (8, 2722651920), (9, 2420135040), (10, 2178121536), (12, 1815101280), (15, 1452081024), (16, 1361325960), (18, 1210067520), (20, 1089060768), (24, 907550640), (27, 806711680), (30, 726040512), (32, 680662980), (36, 605033760), (40, 544530384), (45, 484027008), (48, 453775320), (54, 403355840), (60, 363020256), (64, 340331490), (72, 302516880), (80, 272265192), (90, 242013504), (96, 226887660), (108, 201677920), (120, 181510128), (128, 170165745), (135, 161342336), (144, 151258440), (160, 136132596), (180, 121006752), (192, 113443830), (216, 100838960), (240, 90755064), (270, 80671168), (288, 75629220), (320, 68066298), (360, 60503376), (384, 56721915), (432, 50419480), (480, 45377532), (540, 40335584), (576, 37814610), (640, 34033149), (720, 30251688), (864, 25209740), (960, 22688766), (1080, 20167792), (1152, 18907305), (1440, 15125844), (1728, 12604870), (1920, 11344383), (2160, 10083896), (2880, 7562922), (3456, 6302435), (4320, 5041948), (5760, 3781461), (8640, 2520974), (17280, 1260487)]