261718488

素因数分解:

$2^3\times 3^2\times {\mathrm{541}}^1\times {\mathrm{6719}}^1$

素因数の和:7272

約数の個数: 48

約数和(自身を含む): 710236800

約数和(自身を除く): 448518312

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 541, 1082, 1623, 2164, 3246, 4328, 4869, 6492, 6719, 9738, 12984, 13438, 19476, 20157, 26876, 38952, 40314, 53752, 60471, 80628, 120942, 161256, 241884, 483768, 3634979, 7269958, 10904937, 14539916, 21809874, 29079832, 32714811, 43619748, 65429622, 87239496, 130859244, 261718488]

約数ペア:

[(1, 261718488), (2, 130859244), (3, 87239496), (4, 65429622), (6, 43619748), (8, 32714811), (9, 29079832), (12, 21809874), (18, 14539916), (24, 10904937), (36, 7269958), (72, 3634979), (541, 483768), (1082, 241884), (1623, 161256), (2164, 120942), (3246, 80628), (4328, 60471), (4869, 53752), (6492, 40314), (6719, 38952), (9738, 26876), (12984, 20157), (13438, 19476)]