8090020

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{409}}^1$

素因数の和:484

約数の個数: 48

約数和(自身を含む): 18184320

約数和(自身を除く): 10094300

約数列:

[1, 2, 4, 5, 10, 20, 23, 43, 46, 86, 92, 115, 172, 215, 230, 409, 430, 460, 818, 860, 989, 1636, 1978, 2045, 3956, 4090, 4945, 8180, 9407, 9890, 17587, 18814, 19780, 35174, 37628, 47035, 70348, 87935, 94070, 175870, 188140, 351740, 404501, 809002, 1618004, 2022505, 4045010, 8090020]

約数ペア:

[(1, 8090020), (2, 4045010), (4, 2022505), (5, 1618004), (10, 809002), (20, 404501), (23, 351740), (43, 188140), (46, 175870), (86, 94070), (92, 87935), (115, 70348), (172, 47035), (215, 37628), (230, 35174), (409, 19780), (430, 18814), (460, 17587), (818, 9890), (860, 9407), (989, 8180), (1636, 4945), (1978, 4090), (2045, 3956)]