20288420

素因数分解:

$2^2\times 5^1\times {\mathrm{487}}^1\times {\mathrm{2083}}^1$

素因数の和:2579

約数の個数: 24

約数和(自身を含む): 42713664

約数和(自身を除く): 22425244

約数列:

[1, 2, 4, 5, 10, 20, 487, 974, 1948, 2083, 2435, 4166, 4870, 8332, 9740, 10415, 20830, 41660, 1014421, 2028842, 4057684, 5072105, 10144210, 20288420]

約数ペア:

[(1, 20288420), (2, 10144210), (4, 5072105), (5, 4057684), (10, 2028842), (20, 1014421), (487, 41660), (974, 20830), (1948, 10415), (2083, 9740), (2435, 8332), (4166, 4870)]