31305940

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{18859}}^1$

素因数の和:18951

約数の個数: 24

約数和(自身を含む): 66538080

約数和(自身を除く): 35232140

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 18859, 37718, 75436, 94295, 188590, 377180, 1565297, 3130594, 6261188, 7826485, 15652970, 31305940]

約数ペア:

[(1, 31305940), (2, 15652970), (4, 7826485), (5, 6261188), (10, 3130594), (20, 1565297), (83, 377180), (166, 188590), (332, 94295), (415, 75436), (830, 37718), (1660, 18859)]