28260740

素因数分解:

$2^2\times 5^1\times {\mathrm{709}}^1\times {\mathrm{1993}}^1$

素因数の和:2711

約数の個数: 24

約数和(自身を含む): 59461080

約数和(自身を除く): 31200340

約数列:

[1, 2, 4, 5, 10, 20, 709, 1418, 1993, 2836, 3545, 3986, 7090, 7972, 9965, 14180, 19930, 39860, 1413037, 2826074, 5652148, 7065185, 14130370, 28260740]

約数ペア:

[(1, 28260740), (2, 14130370), (4, 7065185), (5, 5652148), (10, 2826074), (20, 1413037), (709, 39860), (1418, 19930), (1993, 14180), (2836, 9965), (3545, 7972), (3986, 7090)]