20410990

素因数分解:

$2^1\times 5^1\times {\mathrm{919}}^1\times {\mathrm{2221}}^1$

素因数の和:3147

約数の個数: 16

約数和(自身を含む): 36796320

約数和(自身を除く): 16385330

約数列:

[1, 2, 5, 10, 919, 1838, 2221, 4442, 4595, 9190, 11105, 22210, 2041099, 4082198, 10205495, 20410990]

約数ペア:

[(1, 20410990), (2, 10205495), (5, 4082198), (10, 2041099), (919, 22210), (1838, 11105), (2221, 9190), (4442, 4595)]