20018803990

素因数分解:

$2^1\times 5^1\times {\mathrm{173}}^1\times {\mathrm{2341}}^1\times {\mathrm{4943}}^1$

素因数の和:7464

約数の個数: 32

約数和(自身を含む): 36264951936

約数和(自身を除く): 16246147946

約数列:

[1, 2, 5, 10, 173, 346, 865, 1730, 2341, 4682, 4943, 9886, 11705, 23410, 24715, 49430, 404993, 809986, 855139, 1710278, 2024965, 4049930, 4275695, 8551390, 11571563, 23143126, 57857815, 115715630, 2001880399, 4003760798, 10009401995, 20018803990]

約数ペア:

[(1, 20018803990), (2, 10009401995), (5, 4003760798), (10, 2001880399), (173, 115715630), (346, 57857815), (865, 23143126), (1730, 11571563), (2341, 8551390), (4682, 4275695), (4943, 4049930), (9886, 2024965), (11705, 1710278), (23410, 855139), (24715, 809986), (49430, 404993)]