208078640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1987}}^1$

素因数の和:2035

約数の個数: 160

約数和(自身を含む): 638959104

約数和(自身を除く): 430880464

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 17, 20, 22, 28, 34, 35, 40, 44, 55, 56, 68, 70, 77, 80, 85, 88, 110, 112, 119, 136, 140, 154, 170, 176, 187, 220, 238, 272, 280, 308, 340, 374, 385, 440, 476, 560, 595, 616, 680, 748, 770, 880, 935, 952, 1190, 1232, 1309, 1360, 1496, 1540, 1870, 1904, 1987, 2380, 2618, 2992, 3080, 3740, 3974, 4760, 5236, 6160, 6545, 7480, 7948, 9520, 9935, 10472, 13090, 13909, 14960, 15896, 19870, 20944, 21857, 26180, 27818, 31792, 33779, 39740, 43714, 52360, 55636, 67558, 69545, 79480, 87428, 104720, 109285, 111272, 135116, 139090, 152999, 158960, 168895, 174856, 218570, 222544, 236453, 270232, 278180, 305998, 337790, 349712, 371569, 437140, 472906, 540464, 556360, 611996, 675580, 743138, 764995, 874280, 945812, 1112720, 1182265, 1223992, 1351160, 1486276, 1529990, 1748560, 1857845, 1891624, 2364530, 2447984, 2600983, 2702320, 2972552, 3059980, 3715690, 3783248, 4729060, 5201966, 5945104, 6119960, 7431380, 9458120, 10403932, 12239920, 13004915, 14862760, 18916240, 20807864, 26009830, 29725520, 41615728, 52019660, 104039320, 208078640]

約数ペア:

[(1, 208078640), (2, 104039320), (4, 52019660), (5, 41615728), (7, 29725520), (8, 26009830), (10, 20807864), (11, 18916240), (14, 14862760), (16, 13004915), (17, 12239920), (20, 10403932), (22, 9458120), (28, 7431380), (34, 6119960), (35, 5945104), (40, 5201966), (44, 4729060), (55, 3783248), (56, 3715690), (68, 3059980), (70, 2972552), (77, 2702320), (80, 2600983), (85, 2447984), (88, 2364530), (110, 1891624), (112, 1857845), (119, 1748560), (136, 1529990), (140, 1486276), (154, 1351160), (170, 1223992), (176, 1182265), (187, 1112720), (220, 945812), (238, 874280), (272, 764995), (280, 743138), (308, 675580), (340, 611996), (374, 556360), (385, 540464), (440, 472906), (476, 437140), (560, 371569), (595, 349712), (616, 337790), (680, 305998), (748, 278180), (770, 270232), (880, 236453), (935, 222544), (952, 218570), (1190, 174856), (1232, 168895), (1309, 158960), (1360, 152999), (1496, 139090), (1540, 135116), (1870, 111272), (1904, 109285), (1987, 104720), (2380, 87428), (2618, 79480), (2992, 69545), (3080, 67558), (3740, 55636), (3974, 52360), (4760, 43714), (5236, 39740), (6160, 33779), (6545, 31792), (7480, 27818), (7948, 26180), (9520, 21857), (9935, 20944), (10472, 19870), (13090, 15896), (13909, 14960)]