20789964160

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{244243}}^1$

素因数の和:244288

約数の個数: 128

約数和(自身を含む): 59790931200

約数和(自身を除く): 39000967040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 56, 64, 70, 76, 80, 95, 112, 128, 133, 140, 152, 160, 190, 224, 266, 280, 304, 320, 380, 448, 532, 560, 608, 640, 665, 760, 896, 1064, 1120, 1216, 1330, 1520, 2128, 2240, 2432, 2660, 3040, 4256, 4480, 5320, 6080, 8512, 10640, 12160, 17024, 21280, 42560, 85120, 244243, 488486, 976972, 1221215, 1709701, 1953944, 2442430, 3419402, 3907888, 4640617, 4884860, 6838804, 7815776, 8548505, 9281234, 9769720, 13677608, 15631552, 17097010, 18562468, 19539440, 23203085, 27355216, 31263104, 32484319, 34194020, 37124936, 39078880, 46406170, 54710432, 64968638, 68388040, 74249872, 78157760, 92812340, 109420864, 129937276, 136776080, 148499744, 156315520, 162421595, 185624680, 218841728, 259874552, 273552160, 296999488, 324843190, 371249360, 519749104, 547104320, 593998976, 649686380, 742498720, 1039498208, 1094208640, 1299372760, 1484997440, 2078996416, 2598745520, 2969994880, 4157992832, 5197491040, 10394982080, 20789964160]

約数ペア:

[(1, 20789964160), (2, 10394982080), (4, 5197491040), (5, 4157992832), (7, 2969994880), (8, 2598745520), (10, 2078996416), (14, 1484997440), (16, 1299372760), (19, 1094208640), (20, 1039498208), (28, 742498720), (32, 649686380), (35, 593998976), (38, 547104320), (40, 519749104), (56, 371249360), (64, 324843190), (70, 296999488), (76, 273552160), (80, 259874552), (95, 218841728), (112, 185624680), (128, 162421595), (133, 156315520), (140, 148499744), (152, 136776080), (160, 129937276), (190, 109420864), (224, 92812340), (266, 78157760), (280, 74249872), (304, 68388040), (320, 64968638), (380, 54710432), (448, 46406170), (532, 39078880), (560, 37124936), (608, 34194020), (640, 32484319), (665, 31263104), (760, 27355216), (896, 23203085), (1064, 19539440), (1120, 18562468), (1216, 17097010), (1330, 15631552), (1520, 13677608), (2128, 9769720), (2240, 9281234), (2432, 8548505), (2660, 7815776), (3040, 6838804), (4256, 4884860), (4480, 4640617), (5320, 3907888), (6080, 3419402), (8512, 2442430), (10640, 1953944), (12160, 1709701), (17024, 1221215), (21280, 976972), (42560, 488486), (85120, 244243)]