20759690

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{4177}}^1$

素因数の和:4262

約数の個数: 32

約数和(自身を含む): 43317504

約数和(自身を除く): 22557814

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 71, 142, 355, 497, 710, 994, 2485, 4177, 4970, 8354, 20885, 29239, 41770, 58478, 146195, 292390, 296567, 593134, 1482835, 2075969, 2965670, 4151938, 10379845, 20759690]

約数ペア:

[(1, 20759690), (2, 10379845), (5, 4151938), (7, 2965670), (10, 2075969), (14, 1482835), (35, 593134), (70, 296567), (71, 292390), (142, 146195), (355, 58478), (497, 41770), (710, 29239), (994, 20885), (2485, 8354), (4177, 4970)]