4190740

素因数分解:

$2^2\times 5^1\times {\mathrm{317}}^1\times {\mathrm{661}}^1$

素因数の和:987

約数の個数: 24

約数和(自身を含む): 8841672

約数和(自身を除く): 4650932

約数列:

[1, 2, 4, 5, 10, 20, 317, 634, 661, 1268, 1322, 1585, 2644, 3170, 3305, 6340, 6610, 13220, 209537, 419074, 838148, 1047685, 2095370, 4190740]

約数ペア:

[(1, 4190740), (2, 2095370), (4, 1047685), (5, 838148), (10, 419074), (20, 209537), (317, 13220), (634, 6610), (661, 6340), (1268, 3305), (1322, 3170), (1585, 2644)]