1986020

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{499}}^1$

素因数の和:707

約数の個数: 24

約数和(自身を含む): 4200000

約数和(自身を除く): 2213980

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 499, 796, 995, 998, 1990, 1996, 2495, 3980, 4990, 9980, 99301, 198602, 397204, 496505, 993010, 1986020]

約数ペア:

[(1, 1986020), (2, 993010), (4, 496505), (5, 397204), (10, 198602), (20, 99301), (199, 9980), (398, 4990), (499, 3980), (796, 2495), (995, 1996), (998, 1990)]