1946221990

素因数分解:

$2^1\times 5^1\times {\mathrm{199}}^1\times {\mathrm{978001}}^1$

素因数の和:978207

約数の個数: 16

約数和(自身を含む): 3520807200

約数和(自身を除く): 1574585210

約数列:

[1, 2, 5, 10, 199, 398, 995, 1990, 978001, 1956002, 4890005, 9780010, 194622199, 389244398, 973110995, 1946221990]

約数ペア:

[(1, 1946221990), (2, 973110995), (5, 389244398), (10, 194622199), (199, 9780010), (398, 4890005), (995, 1956002), (1990, 978001)]