399486530

素因数分解:

$2^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{199}}^1\times {\mathrm{1949}}^1$

素因数の和:2258

約数の個数: 32

約数和(自身を含む): 730080000

約数和(自身を除く): 330593470

約数列:

[1, 2, 5, 10, 103, 199, 206, 398, 515, 995, 1030, 1949, 1990, 3898, 9745, 19490, 20497, 40994, 102485, 200747, 204970, 387851, 401494, 775702, 1003735, 1939255, 2007470, 3878510, 39948653, 79897306, 199743265, 399486530]

約数ペア:

[(1, 399486530), (2, 199743265), (5, 79897306), (10, 39948653), (103, 3878510), (199, 2007470), (206, 1939255), (398, 1003735), (515, 775702), (995, 401494), (1030, 387851), (1949, 204970), (1990, 200747), (3898, 102485), (9745, 40994), (19490, 20497)]