18221660

素因数分解:

$2^2\times 5^1\times {\mathrm{577}}^1\times {\mathrm{1579}}^1$

素因数の和:2165

約数の個数: 24

約数和(自身を含む): 38356080

約数和(自身を除く): 20134420

約数列:

[1, 2, 4, 5, 10, 20, 577, 1154, 1579, 2308, 2885, 3158, 5770, 6316, 7895, 11540, 15790, 31580, 911083, 1822166, 3644332, 4555415, 9110830, 18221660]

約数ペア:

[(1, 18221660), (2, 9110830), (4, 4555415), (5, 3644332), (10, 1822166), (20, 911083), (577, 31580), (1154, 15790), (1579, 11540), (2308, 7895), (2885, 6316), (3158, 5770)]