25344640

素因数分解:

$2^7\times 5^1\times {\mathrm{199}}^2$

素因数の和:417

約数の個数: 48

約数和(自身を含む): 60895530

約数和(自身を除く): 35550890

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 199, 320, 398, 640, 796, 995, 1592, 1990, 3184, 3980, 6368, 7960, 12736, 15920, 25472, 31840, 39601, 63680, 79202, 127360, 158404, 198005, 316808, 396010, 633616, 792020, 1267232, 1584040, 2534464, 3168080, 5068928, 6336160, 12672320, 25344640]

約数ペア:

[(1, 25344640), (2, 12672320), (4, 6336160), (5, 5068928), (8, 3168080), (10, 2534464), (16, 1584040), (20, 1267232), (32, 792020), (40, 633616), (64, 396010), (80, 316808), (128, 198005), (160, 158404), (199, 127360), (320, 79202), (398, 63680), (640, 39601), (796, 31840), (995, 25472), (1592, 15920), (1990, 12736), (3184, 7960), (3980, 6368)]