664610

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1621}}^1$

素因数の和:1669

約数の個数: 16

約数和(自身を含む): 1226232

約数和(自身を除く): 561622

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 1621, 3242, 8105, 16210, 66461, 132922, 332305, 664610]

約数ペア:

[(1, 664610), (2, 332305), (5, 132922), (10, 66461), (41, 16210), (82, 8105), (205, 3242), (410, 1621)]