205362800

素因数分解:

$2^4\times 5^2\times {\mathrm{513407}}^1$

素因数の和:513425

約数の個数: 30

約数和(自身を含む): 493385088

約数和(自身を除く): 288022288

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 513407, 1026814, 2053628, 2567035, 4107256, 5134070, 8214512, 10268140, 12835175, 20536280, 25670350, 41072560, 51340700, 102681400, 205362800]

約数ペア:

[(1, 205362800), (2, 102681400), (4, 51340700), (5, 41072560), (8, 25670350), (10, 20536280), (16, 12835175), (20, 10268140), (25, 8214512), (40, 5134070), (50, 4107256), (80, 2567035), (100, 2053628), (200, 1026814), (400, 513407)]