1285136

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{2591}}^1$

素因数の和:2630

約数の個数: 20

約数和(自身を含む): 2571264

約数和(自身を除く): 1286128

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 2591, 5182, 10364, 20728, 41456, 80321, 160642, 321284, 642568, 1285136]

約数ペア:

[(1, 1285136), (2, 642568), (4, 321284), (8, 160642), (16, 80321), (31, 41456), (62, 20728), (124, 10364), (248, 5182), (496, 2591)]