2649181820

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{653}}^1\times {\mathrm{2857}}^1$

素因数の和:3590

約数の個数: 48

約数和(自身を含む): 5652255168

約数和(自身を除く): 3003073348

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 653, 710, 1306, 1420, 2612, 2857, 3265, 5714, 6530, 11428, 13060, 14285, 28570, 46363, 57140, 92726, 185452, 202847, 231815, 405694, 463630, 811388, 927260, 1014235, 1865621, 2028470, 3731242, 4056940, 7462484, 9328105, 18656210, 37312420, 132459091, 264918182, 529836364, 662295455, 1324590910, 2649181820]

約数ペア:

[(1, 2649181820), (2, 1324590910), (4, 662295455), (5, 529836364), (10, 264918182), (20, 132459091), (71, 37312420), (142, 18656210), (284, 9328105), (355, 7462484), (653, 4056940), (710, 3731242), (1306, 2028470), (1420, 1865621), (2612, 1014235), (2857, 927260), (3265, 811388), (5714, 463630), (6530, 405694), (11428, 231815), (13060, 202847), (14285, 185452), (28570, 92726), (46363, 57140)]