81991448

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{133103}}^1$

素因数の和:133127

約数の個数: 32

約数和(自身を含む): 191669760

約数和(自身を除く): 109678312

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 88, 154, 308, 616, 133103, 266206, 532412, 931721, 1064824, 1464133, 1863442, 2928266, 3726884, 5856532, 7453768, 10248931, 11713064, 20497862, 40995724, 81991448]

約数ペア:

[(1, 81991448), (2, 40995724), (4, 20497862), (7, 11713064), (8, 10248931), (11, 7453768), (14, 5856532), (22, 3726884), (28, 2928266), (44, 1863442), (56, 1464133), (77, 1064824), (88, 931721), (154, 532412), (308, 266206), (616, 133103)]