642976

素因数分解:

$2^5\times {\mathrm{71}}^1\times {\mathrm{283}}^1$

素因数の和:364

約数の個数: 24

約数和(自身を含む): 1288224

約数和(自身を除く): 645248

約数列:

[1, 2, 4, 8, 16, 32, 71, 142, 283, 284, 566, 568, 1132, 1136, 2264, 2272, 4528, 9056, 20093, 40186, 80372, 160744, 321488, 642976]

約数ペア:

[(1, 642976), (2, 321488), (4, 160744), (8, 80372), (16, 40186), (32, 20093), (71, 9056), (142, 4528), (283, 2272), (284, 2264), (566, 1136), (568, 1132)]