280492784

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{2851}}^1$

素因数の和:2926

約数の個数: 80

約数和(自身を含む): 653541504

約数和(自身を除く): 373048720

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 43, 44, 52, 86, 88, 104, 143, 172, 176, 208, 286, 344, 473, 559, 572, 688, 946, 1118, 1144, 1892, 2236, 2288, 2851, 3784, 4472, 5702, 6149, 7568, 8944, 11404, 12298, 22808, 24596, 31361, 37063, 45616, 49192, 62722, 74126, 98384, 122593, 125444, 148252, 245186, 250888, 296504, 407693, 490372, 501776, 593008, 815386, 980744, 1348523, 1593709, 1630772, 1961488, 2697046, 3187418, 3261544, 5394092, 6374836, 6523088, 10788184, 12749672, 17530799, 21576368, 25499344, 35061598, 70123196, 140246392, 280492784]

約数ペア:

[(1, 280492784), (2, 140246392), (4, 70123196), (8, 35061598), (11, 25499344), (13, 21576368), (16, 17530799), (22, 12749672), (26, 10788184), (43, 6523088), (44, 6374836), (52, 5394092), (86, 3261544), (88, 3187418), (104, 2697046), (143, 1961488), (172, 1630772), (176, 1593709), (208, 1348523), (286, 980744), (344, 815386), (473, 593008), (559, 501776), (572, 490372), (688, 407693), (946, 296504), (1118, 250888), (1144, 245186), (1892, 148252), (2236, 125444), (2288, 122593), (2851, 98384), (3784, 74126), (4472, 62722), (5702, 49192), (6149, 45616), (7568, 37063), (8944, 31361), (11404, 24596), (12298, 22808)]