20911349120

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{211}}^1\times {\mathrm{9109}}^1$

素因数の和:9356

約数の個数: 128

約数和(自身を含む): 53188552800

約数和(自身を除く): 32277203680

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 211, 272, 320, 340, 422, 544, 640, 680, 844, 1055, 1088, 1360, 1688, 2110, 2176, 2720, 3376, 3587, 4220, 5440, 6752, 7174, 8440, 9109, 10880, 13504, 14348, 16880, 17935, 18218, 27008, 28696, 33760, 35870, 36436, 45545, 57392, 67520, 71740, 72872, 91090, 114784, 135040, 143480, 145744, 154853, 182180, 229568, 286960, 291488, 309706, 364360, 459136, 573920, 582976, 619412, 728720, 774265, 1147840, 1165952, 1238824, 1457440, 1548530, 1921999, 2295680, 2477648, 2914880, 3097060, 3843998, 4955296, 5829760, 6194120, 7687996, 9609995, 9910592, 12388240, 15375992, 19219990, 19821184, 24776480, 30751984, 32673983, 38439980, 49552960, 61503968, 65347966, 76879960, 99105920, 123007936, 130695932, 153759920, 163369915, 246015872, 261391864, 307519840, 326739830, 522783728, 615039680, 653479660, 1045567456, 1230079360, 1306959320, 2091134912, 2613918640, 4182269824, 5227837280, 10455674560, 20911349120]

約数ペア:

[(1, 20911349120), (2, 10455674560), (4, 5227837280), (5, 4182269824), (8, 2613918640), (10, 2091134912), (16, 1306959320), (17, 1230079360), (20, 1045567456), (32, 653479660), (34, 615039680), (40, 522783728), (64, 326739830), (68, 307519840), (80, 261391864), (85, 246015872), (128, 163369915), (136, 153759920), (160, 130695932), (170, 123007936), (211, 99105920), (272, 76879960), (320, 65347966), (340, 61503968), (422, 49552960), (544, 38439980), (640, 32673983), (680, 30751984), (844, 24776480), (1055, 19821184), (1088, 19219990), (1360, 15375992), (1688, 12388240), (2110, 9910592), (2176, 9609995), (2720, 7687996), (3376, 6194120), (3587, 5829760), (4220, 4955296), (5440, 3843998), (6752, 3097060), (7174, 2914880), (8440, 2477648), (9109, 2295680), (10880, 1921999), (13504, 1548530), (14348, 1457440), (16880, 1238824), (17935, 1165952), (18218, 1147840), (27008, 774265), (28696, 728720), (33760, 619412), (35870, 582976), (36436, 573920), (45545, 459136), (57392, 364360), (67520, 309706), (71740, 291488), (72872, 286960), (91090, 229568), (114784, 182180), (135040, 154853), (143480, 145744)]