80316400

素因数分解:

$2^4\times 5^2\times {\mathrm{199}}^1\times {\mathrm{1009}}^1$

素因数の和:1226

約数の個数: 60

約数和(自身を含む): 194122000

約数和(自身を除く): 113805600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 199, 200, 398, 400, 796, 995, 1009, 1592, 1990, 2018, 3184, 3980, 4036, 4975, 5045, 7960, 8072, 9950, 10090, 15920, 16144, 19900, 20180, 25225, 39800, 40360, 50450, 79600, 80720, 100900, 200791, 201800, 401582, 403600, 803164, 1003955, 1606328, 2007910, 3212656, 4015820, 5019775, 8031640, 10039550, 16063280, 20079100, 40158200, 80316400]

約数ペア:

[(1, 80316400), (2, 40158200), (4, 20079100), (5, 16063280), (8, 10039550), (10, 8031640), (16, 5019775), (20, 4015820), (25, 3212656), (40, 2007910), (50, 1606328), (80, 1003955), (100, 803164), (199, 403600), (200, 401582), (398, 201800), (400, 200791), (796, 100900), (995, 80720), (1009, 79600), (1592, 50450), (1990, 40360), (2018, 39800), (3184, 25225), (3980, 20180), (4036, 19900), (4975, 16144), (5045, 15920), (7960, 10090), (8072, 9950)]