68674280

素因数分解:

$2^3\times 5^1\times {\mathrm{509}}^1\times {\mathrm{3373}}^1$

素因数の和:3893

約数の個数: 32

約数和(自身を含む): 154866600

約数和(自身を除く): 86192320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 509, 1018, 2036, 2545, 3373, 4072, 5090, 6746, 10180, 13492, 16865, 20360, 26984, 33730, 67460, 134920, 1716857, 3433714, 6867428, 8584285, 13734856, 17168570, 34337140, 68674280]

約数ペア:

[(1, 68674280), (2, 34337140), (4, 17168570), (5, 13734856), (8, 8584285), (10, 6867428), (20, 3433714), (40, 1716857), (509, 134920), (1018, 67460), (2036, 33730), (2545, 26984), (3373, 20360), (4072, 16865), (5090, 13492), (6746, 10180)]