85709780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{4643}}^1$

素因数の和:4736

約数の個数: 48

約数和(自身を含む): 196608384

約数和(自身を除く): 110898604

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 71, 130, 142, 260, 284, 355, 710, 923, 1420, 1846, 3692, 4615, 4643, 9230, 9286, 18460, 18572, 23215, 46430, 60359, 92860, 120718, 241436, 301795, 329653, 603590, 659306, 1207180, 1318612, 1648265, 3296530, 4285489, 6593060, 8570978, 17141956, 21427445, 42854890, 85709780]

約数ペア:

[(1, 85709780), (2, 42854890), (4, 21427445), (5, 17141956), (10, 8570978), (13, 6593060), (20, 4285489), (26, 3296530), (52, 1648265), (65, 1318612), (71, 1207180), (130, 659306), (142, 603590), (260, 329653), (284, 301795), (355, 241436), (710, 120718), (923, 92860), (1420, 60359), (1846, 46430), (3692, 23215), (4615, 18572), (4643, 18460), (9230, 9286)]