80575100

素因数分解:

$2^2\times 5^2\times {\mathrm{199}}^1\times {\mathrm{4049}}^1$

素因数の和:4262

約数の個数: 36

約数和(自身を含む): 175770000

約数和(自身を除く): 95194900

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 199, 398, 796, 995, 1990, 3980, 4049, 4975, 8098, 9950, 16196, 19900, 20245, 40490, 80980, 101225, 202450, 404900, 805751, 1611502, 3223004, 4028755, 8057510, 16115020, 20143775, 40287550, 80575100]

約数ペア:

[(1, 80575100), (2, 40287550), (4, 20143775), (5, 16115020), (10, 8057510), (20, 4028755), (25, 3223004), (50, 1611502), (100, 805751), (199, 404900), (398, 202450), (796, 101225), (995, 80980), (1990, 40490), (3980, 20245), (4049, 19900), (4975, 16196), (8098, 9950)]