81491650

素因数分解:

$2^1\times 5^2\times {\mathrm{173}}^1\times {\mathrm{9421}}^1$

素因数の和:9606

約数の個数: 24

約数和(自身を含む): 152466804

約数和(自身を除く): 70975154

約数列:

[1, 2, 5, 10, 25, 50, 173, 346, 865, 1730, 4325, 8650, 9421, 18842, 47105, 94210, 235525, 471050, 1629833, 3259666, 8149165, 16298330, 40745825, 81491650]

約数ペア:

[(1, 81491650), (2, 40745825), (5, 16298330), (10, 8149165), (25, 3259666), (50, 1629833), (173, 471050), (346, 235525), (865, 94210), (1730, 47105), (4325, 18842), (8650, 9421)]