51491440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{643}}^1$

素因数の和:687

約数の個数: 160

約数和(自身を含む): 160989696

約数和(自身を除く): 109498256

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 16, 20, 22, 26, 28, 35, 40, 44, 52, 55, 56, 65, 70, 77, 80, 88, 91, 104, 110, 112, 130, 140, 143, 154, 176, 182, 208, 220, 260, 280, 286, 308, 364, 385, 440, 455, 520, 560, 572, 616, 643, 715, 728, 770, 880, 910, 1001, 1040, 1144, 1232, 1286, 1430, 1456, 1540, 1820, 2002, 2288, 2572, 2860, 3080, 3215, 3640, 4004, 4501, 5005, 5144, 5720, 6160, 6430, 7073, 7280, 8008, 8359, 9002, 10010, 10288, 11440, 12860, 14146, 16016, 16718, 18004, 20020, 22505, 25720, 28292, 33436, 35365, 36008, 40040, 41795, 45010, 49511, 51440, 56584, 58513, 66872, 70730, 72016, 80080, 83590, 90020, 91949, 99022, 113168, 117026, 133744, 141460, 167180, 180040, 183898, 198044, 234052, 247555, 282920, 292565, 334360, 360080, 367796, 396088, 459745, 468104, 495110, 565840, 585130, 643643, 668720, 735592, 792176, 919490, 936208, 990220, 1170260, 1287286, 1471184, 1838980, 1980440, 2340520, 2574572, 3218215, 3677960, 3960880, 4681040, 5149144, 6436430, 7355920, 10298288, 12872860, 25745720, 51491440]

約数ペア:

[(1, 51491440), (2, 25745720), (4, 12872860), (5, 10298288), (7, 7355920), (8, 6436430), (10, 5149144), (11, 4681040), (13, 3960880), (14, 3677960), (16, 3218215), (20, 2574572), (22, 2340520), (26, 1980440), (28, 1838980), (35, 1471184), (40, 1287286), (44, 1170260), (52, 990220), (55, 936208), (56, 919490), (65, 792176), (70, 735592), (77, 668720), (80, 643643), (88, 585130), (91, 565840), (104, 495110), (110, 468104), (112, 459745), (130, 396088), (140, 367796), (143, 360080), (154, 334360), (176, 292565), (182, 282920), (208, 247555), (220, 234052), (260, 198044), (280, 183898), (286, 180040), (308, 167180), (364, 141460), (385, 133744), (440, 117026), (455, 113168), (520, 99022), (560, 91949), (572, 90020), (616, 83590), (643, 80080), (715, 72016), (728, 70730), (770, 66872), (880, 58513), (910, 56584), (1001, 51440), (1040, 49511), (1144, 45010), (1232, 41795), (1286, 40040), (1430, 36008), (1456, 35365), (1540, 33436), (1820, 28292), (2002, 25720), (2288, 22505), (2572, 20020), (2860, 18004), (3080, 16718), (3215, 16016), (3640, 14146), (4004, 12860), (4501, 11440), (5005, 10288), (5144, 10010), (5720, 9002), (6160, 8359), (6430, 8008), (7073, 7280)]