28373420

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{7129}}^1$

素因数の和:7337

約数の個数: 24

約数和(自身を含む): 59892000

約数和(自身を除く): 31518580

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980, 7129, 14258, 28516, 35645, 71290, 142580, 1418671, 2837342, 5674684, 7093355, 14186710, 28373420]

約数ペア:

[(1, 28373420), (2, 14186710), (4, 7093355), (5, 5674684), (10, 2837342), (20, 1418671), (199, 142580), (398, 71290), (796, 35645), (995, 28516), (1990, 14258), (3980, 7129)]