8344220

素因数分解:

$2^2\times 5^1\times {\mathrm{421}}^1\times {\mathrm{991}}^1$

素因数の和:1421

約数の個数: 24

約数和(自身を含む): 17582208

約数和(自身を除く): 9237988

約数列:

[1, 2, 4, 5, 10, 20, 421, 842, 991, 1684, 1982, 2105, 3964, 4210, 4955, 8420, 9910, 19820, 417211, 834422, 1668844, 2086055, 4172110, 8344220]

約数ペア:

[(1, 8344220), (2, 4172110), (4, 2086055), (5, 1668844), (10, 834422), (20, 417211), (421, 19820), (842, 9910), (991, 8420), (1684, 4955), (1982, 4210), (2105, 3964)]