20044900

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{4889}}^1$

素因数の和:4944

約数の個数: 36

約数和(自身を含む): 44567460

約数和(自身を除く): 24522560

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 164, 205, 410, 820, 1025, 2050, 4100, 4889, 9778, 19556, 24445, 48890, 97780, 122225, 200449, 244450, 400898, 488900, 801796, 1002245, 2004490, 4008980, 5011225, 10022450, 20044900]

約数ペア:

[(1, 20044900), (2, 10022450), (4, 5011225), (5, 4008980), (10, 2004490), (20, 1002245), (25, 801796), (41, 488900), (50, 400898), (82, 244450), (100, 200449), (164, 122225), (205, 97780), (410, 48890), (820, 24445), (1025, 19556), (2050, 9778), (4100, 4889)]