834972440

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{81223}}^1$

素因数の和:81491

約数の個数: 32

約数和(自身を含む): 1886021280

約数和(自身を除く): 1051048840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 2056, 2570, 5140, 10280, 81223, 162446, 324892, 406115, 649784, 812230, 1624460, 3248920, 20874311, 41748622, 83497244, 104371555, 166994488, 208743110, 417486220, 834972440]

約数ペア:

[(1, 834972440), (2, 417486220), (4, 208743110), (5, 166994488), (8, 104371555), (10, 83497244), (20, 41748622), (40, 20874311), (257, 3248920), (514, 1624460), (1028, 812230), (1285, 649784), (2056, 406115), (2570, 324892), (5140, 162446), (10280, 81223)]