25871990

素因数分解:

$2^1\times 5^1\times {\mathrm{199}}^1\times {\mathrm{13001}}^1$

素因数の和:13207

約数の個数: 16

約数和(自身を含む): 46807200

約数和(自身を除く): 20935210

約数列:

[1, 2, 5, 10, 199, 398, 995, 1990, 13001, 26002, 65005, 130010, 2587199, 5174398, 12935995, 25871990]

約数ペア:

[(1, 25871990), (2, 12935995), (5, 5174398), (10, 2587199), (199, 130010), (398, 65005), (995, 26002), (1990, 13001)]