40821980

素因数分解:

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

素因数の和:3149

約数の個数: 24

約数和(自身を含む): 85858080

約数和(自身を除く): 45036100

約数列:

[1, 2, 4, 5, 10, 20, 919, 1838, 2221, 3676, 4442, 4595, 8884, 9190, 11105, 18380, 22210, 44420, 2041099, 4082198, 8164396, 10205495, 20410990, 40821980]

約数ペア:

[(1, 40821980), (2, 20410990), (4, 10205495), (5, 8164396), (10, 4082198), (20, 2041099), (919, 44420), (1838, 22210), (2221, 18380), (3676, 11105), (4442, 9190), (4595, 8884)]