81345208

素因数分解:

$2^3\times 7^1\times {\mathrm{61}}^1\times {\mathrm{23813}}^1$

素因数の和:23887

約数の個数: 32

約数和(自身を含む): 177176160

約数和(自身を除く): 95830952

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 61, 122, 244, 427, 488, 854, 1708, 3416, 23813, 47626, 95252, 166691, 190504, 333382, 666764, 1333528, 1452593, 2905186, 5810372, 10168151, 11620744, 20336302, 40672604, 81345208]

約数ペア:

[(1, 81345208), (2, 40672604), (4, 20336302), (7, 11620744), (8, 10168151), (14, 5810372), (28, 2905186), (56, 1452593), (61, 1333528), (122, 666764), (244, 333382), (427, 190504), (488, 166691), (854, 95252), (1708, 47626), (3416, 23813)]