81724790

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{167}}^1\times {\mathrm{6991}}^1$

素因数の和:7172

約数の個数: 32

約数和(自身を含む): 169150464

約数和(自身を除く): 87425674

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 167, 334, 835, 1169, 1670, 2338, 5845, 6991, 11690, 13982, 34955, 48937, 69910, 97874, 244685, 489370, 1167497, 2334994, 5837485, 8172479, 11674970, 16344958, 40862395, 81724790]

約数ペア:

[(1, 81724790), (2, 40862395), (5, 16344958), (7, 11674970), (10, 8172479), (14, 5837485), (35, 2334994), (70, 1167497), (167, 489370), (334, 244685), (835, 97874), (1169, 69910), (1670, 48937), (2338, 34955), (5845, 13982), (6991, 11690)]