81661400

素因数分解:

$2^3\times 5^2\times {\mathrm{229}}^1\times {\mathrm{1783}}^1$

素因数の和:2028

約数の個数: 48

約数和(自身を含む): 190798800

約数和(自身を除く): 109137400

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 229, 458, 916, 1145, 1783, 1832, 2290, 3566, 4580, 5725, 7132, 8915, 9160, 11450, 14264, 17830, 22900, 35660, 44575, 45800, 71320, 89150, 178300, 356600, 408307, 816614, 1633228, 2041535, 3266456, 4083070, 8166140, 10207675, 16332280, 20415350, 40830700, 81661400]

約数ペア:

[(1, 81661400), (2, 40830700), (4, 20415350), (5, 16332280), (8, 10207675), (10, 8166140), (20, 4083070), (25, 3266456), (40, 2041535), (50, 1633228), (100, 816614), (200, 408307), (229, 356600), (458, 178300), (916, 89150), (1145, 71320), (1783, 45800), (1832, 44575), (2290, 35660), (3566, 22900), (4580, 17830), (5725, 14264), (7132, 11450), (8915, 9160)]