204300520

素因数分解:

$2^3\times 5^1\times {\mathrm{241}}^1\times {\mathrm{21193}}^1$

素因数の和:21445

約数の個数: 32

約数和(自身を含む): 461605320

約数和(自身を除く): 257304800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 241, 482, 964, 1205, 1928, 2410, 4820, 9640, 21193, 42386, 84772, 105965, 169544, 211930, 423860, 847720, 5107513, 10215026, 20430052, 25537565, 40860104, 51075130, 102150260, 204300520]

約数ペア:

[(1, 204300520), (2, 102150260), (4, 51075130), (5, 40860104), (8, 25537565), (10, 20430052), (20, 10215026), (40, 5107513), (241, 847720), (482, 423860), (964, 211930), (1205, 169544), (1928, 105965), (2410, 84772), (4820, 42386), (9640, 21193)]