261266304

素因数分解:

$2^7\times 3^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{263}}^1$

素因数の和:492

約数の個数: 128

約数和(自身を含む): 753984000

約数和(自身を除く): 492717696

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 64, 78, 96, 104, 128, 156, 192, 199, 208, 263, 312, 384, 398, 416, 526, 597, 624, 789, 796, 832, 1052, 1194, 1248, 1578, 1592, 1664, 2104, 2388, 2496, 2587, 3156, 3184, 3419, 4208, 4776, 4992, 5174, 6312, 6368, 6838, 7761, 8416, 9552, 10257, 10348, 12624, 12736, 13676, 15522, 16832, 19104, 20514, 20696, 25248, 25472, 27352, 31044, 33664, 38208, 41028, 41392, 50496, 52337, 54704, 62088, 76416, 82056, 82784, 100992, 104674, 109408, 124176, 157011, 164112, 165568, 209348, 218816, 248352, 314022, 328224, 331136, 418696, 437632, 496704, 628044, 656448, 680381, 837392, 993408, 1256088, 1312896, 1360762, 1674784, 2041143, 2512176, 2721524, 3349568, 4082286, 5024352, 5443048, 6699136, 8164572, 10048704, 10886096, 16329144, 20097408, 21772192, 32658288, 43544384, 65316576, 87088768, 130633152, 261266304]

約数ペア:

[(1, 261266304), (2, 130633152), (3, 87088768), (4, 65316576), (6, 43544384), (8, 32658288), (12, 21772192), (13, 20097408), (16, 16329144), (24, 10886096), (26, 10048704), (32, 8164572), (39, 6699136), (48, 5443048), (52, 5024352), (64, 4082286), (78, 3349568), (96, 2721524), (104, 2512176), (128, 2041143), (156, 1674784), (192, 1360762), (199, 1312896), (208, 1256088), (263, 993408), (312, 837392), (384, 680381), (398, 656448), (416, 628044), (526, 496704), (597, 437632), (624, 418696), (789, 331136), (796, 328224), (832, 314022), (1052, 248352), (1194, 218816), (1248, 209348), (1578, 165568), (1592, 164112), (1664, 157011), (2104, 124176), (2388, 109408), (2496, 104674), (2587, 100992), (3156, 82784), (3184, 82056), (3419, 76416), (4208, 62088), (4776, 54704), (4992, 52337), (5174, 50496), (6312, 41392), (6368, 41028), (6838, 38208), (7761, 33664), (8416, 31044), (9552, 27352), (10257, 25472), (10348, 25248), (12624, 20696), (12736, 20514), (13676, 19104), (15522, 16832)]