205138900

素因数分解:

$2^2\times 5^2\times {\mathrm{499}}^1\times {\mathrm{4111}}^1$

素因数の和:4624

約数の個数: 36

約数和(自身を含む): 446152000

約数和(自身を除く): 241013100

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 499, 998, 1996, 2495, 4111, 4990, 8222, 9980, 12475, 16444, 20555, 24950, 41110, 49900, 82220, 102775, 205550, 411100, 2051389, 4102778, 8205556, 10256945, 20513890, 41027780, 51284725, 102569450, 205138900]

約数ペア:

[(1, 205138900), (2, 102569450), (4, 51284725), (5, 41027780), (10, 20513890), (20, 10256945), (25, 8205556), (50, 4102778), (100, 2051389), (499, 411100), (998, 205550), (1996, 102775), (2495, 82220), (4111, 49900), (4990, 41110), (8222, 24950), (9980, 20555), (12475, 16444)]