251228880

素因数分解:

$2^4\times 3^2\times 5^1\times 7^2\times {\mathrm{7121}}^1$

素因数の和:7154

約数の個数: 180

約数和(自身を含む): 981596772

約数和(自身を除く): 730367892

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 49, 56, 60, 63, 70, 72, 80, 84, 90, 98, 105, 112, 120, 126, 140, 144, 147, 168, 180, 196, 210, 240, 245, 252, 280, 294, 315, 336, 360, 392, 420, 441, 490, 504, 560, 588, 630, 720, 735, 784, 840, 882, 980, 1008, 1176, 1260, 1470, 1680, 1764, 1960, 2205, 2352, 2520, 2940, 3528, 3920, 4410, 5040, 5880, 7056, 7121, 8820, 11760, 14242, 17640, 21363, 28484, 35280, 35605, 42726, 49847, 56968, 64089, 71210, 85452, 99694, 106815, 113936, 128178, 142420, 149541, 170904, 199388, 213630, 249235, 256356, 284840, 299082, 320445, 341808, 348929, 398776, 427260, 448623, 498470, 512712, 569680, 598164, 640890, 697858, 747705, 797552, 854520, 897246, 996940, 1025424, 1046787, 1196328, 1281780, 1395716, 1495410, 1709040, 1744645, 1794492, 1993880, 2093574, 2243115, 2392656, 2563560, 2791432, 2990820, 3140361, 3489290, 3588984, 3987760, 4187148, 4486230, 5127120, 5233935, 5582864, 5981640, 6280722, 6978580, 7177968, 8374296, 8972460, 10467870, 11963280, 12561444, 13957160, 15701805, 16748592, 17944920, 20935740, 25122888, 27914320, 31403610, 35889840, 41871480, 50245776, 62807220, 83742960, 125614440, 251228880]

約数ペア:

[(1, 251228880), (2, 125614440), (3, 83742960), (4, 62807220), (5, 50245776), (6, 41871480), (7, 35889840), (8, 31403610), (9, 27914320), (10, 25122888), (12, 20935740), (14, 17944920), (15, 16748592), (16, 15701805), (18, 13957160), (20, 12561444), (21, 11963280), (24, 10467870), (28, 8972460), (30, 8374296), (35, 7177968), (36, 6978580), (40, 6280722), (42, 5981640), (45, 5582864), (48, 5233935), (49, 5127120), (56, 4486230), (60, 4187148), (63, 3987760), (70, 3588984), (72, 3489290), (80, 3140361), (84, 2990820), (90, 2791432), (98, 2563560), (105, 2392656), (112, 2243115), (120, 2093574), (126, 1993880), (140, 1794492), (144, 1744645), (147, 1709040), (168, 1495410), (180, 1395716), (196, 1281780), (210, 1196328), (240, 1046787), (245, 1025424), (252, 996940), (280, 897246), (294, 854520), (315, 797552), (336, 747705), (360, 697858), (392, 640890), (420, 598164), (441, 569680), (490, 512712), (504, 498470), (560, 448623), (588, 427260), (630, 398776), (720, 348929), (735, 341808), (784, 320445), (840, 299082), (882, 284840), (980, 256356), (1008, 249235), (1176, 213630), (1260, 199388), (1470, 170904), (1680, 149541), (1764, 142420), (1960, 128178), (2205, 113936), (2352, 106815), (2520, 99694), (2940, 85452), (3528, 71210), (3920, 64089), (4410, 56968), (5040, 49847), (5880, 42726), (7056, 35605), (7121, 35280), (8820, 28484), (11760, 21363), (14242, 17640)]