28425500

素因数分解:

$2^2\times 5^3\times {\mathrm{139}}^1\times {\mathrm{409}}^1$

素因数の和:567

約数の個数: 48

約数和(自身を含む): 62680800

約数和(自身を除く): 34255300

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 139, 250, 278, 409, 500, 556, 695, 818, 1390, 1636, 2045, 2780, 3475, 4090, 6950, 8180, 10225, 13900, 17375, 20450, 34750, 40900, 51125, 56851, 69500, 102250, 113702, 204500, 227404, 284255, 568510, 1137020, 1421275, 2842550, 5685100, 7106375, 14212750, 28425500]

約数ペア:

[(1, 28425500), (2, 14212750), (4, 7106375), (5, 5685100), (10, 2842550), (20, 1421275), (25, 1137020), (50, 568510), (100, 284255), (125, 227404), (139, 204500), (250, 113702), (278, 102250), (409, 69500), (500, 56851), (556, 51125), (695, 40900), (818, 34750), (1390, 20450), (1636, 17375), (2045, 13900), (2780, 10225), (3475, 8180), (4090, 6950)]