20457340

素因数分解:

$2^2\times 5^1\times {\mathrm{941}}^1\times {\mathrm{1087}}^1$

素因数の和:2037

約数の個数: 24

約数和(自身を含む): 43045632

約数和(自身を除く): 22588292

約数列:

[1, 2, 4, 5, 10, 20, 941, 1087, 1882, 2174, 3764, 4348, 4705, 5435, 9410, 10870, 18820, 21740, 1022867, 2045734, 4091468, 5114335, 10228670, 20457340]

約数ペア:

[(1, 20457340), (2, 10228670), (4, 5114335), (5, 4091468), (10, 2045734), (20, 1022867), (941, 21740), (1087, 18820), (1882, 10870), (2174, 9410), (3764, 5435), (4348, 4705)]