1286236

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{647}}^1$

素因数の和:729

約数の個数: 24

約数和(自身を含む): 2612736

約数和(自身を除く): 1326500

約数列:

[1, 2, 4, 7, 14, 28, 71, 142, 284, 497, 647, 994, 1294, 1988, 2588, 4529, 9058, 18116, 45937, 91874, 183748, 321559, 643118, 1286236]

約数ペア:

[(1, 1286236), (2, 643118), (4, 321559), (7, 183748), (14, 91874), (28, 45937), (71, 18116), (142, 9058), (284, 4529), (497, 2588), (647, 1988), (994, 1294)]