81878608

素因数分解:

$2^4\times 7^2\times {\mathrm{181}}^1\times {\mathrm{577}}^1$

素因数の和:780

約数の個数: 60

約数和(自身を含む): 185881332

約数和(自身を除く): 104002724

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 181, 196, 362, 392, 577, 724, 784, 1154, 1267, 1448, 2308, 2534, 2896, 4039, 4616, 5068, 8078, 8869, 9232, 10136, 16156, 17738, 20272, 28273, 32312, 35476, 56546, 64624, 70952, 104437, 113092, 141904, 208874, 226184, 417748, 452368, 731059, 835496, 1462118, 1670992, 2924236, 5117413, 5848472, 10234826, 11696944, 20469652, 40939304, 81878608]

約数ペア:

[(1, 81878608), (2, 40939304), (4, 20469652), (7, 11696944), (8, 10234826), (14, 5848472), (16, 5117413), (28, 2924236), (49, 1670992), (56, 1462118), (98, 835496), (112, 731059), (181, 452368), (196, 417748), (362, 226184), (392, 208874), (577, 141904), (724, 113092), (784, 104437), (1154, 70952), (1267, 64624), (1448, 56546), (2308, 35476), (2534, 32312), (2896, 28273), (4039, 20272), (4616, 17738), (5068, 16156), (8078, 10136), (8869, 9232)]