8420140

素因数分解:

$2^2\times 5^1\times {\mathrm{167}}^1\times {\mathrm{2521}}^1$

素因数の和:2697

約数の個数: 24

約数和(自身を含む): 17795232

約数和(自身を除く): 9375092

約数列:

[1, 2, 4, 5, 10, 20, 167, 334, 668, 835, 1670, 2521, 3340, 5042, 10084, 12605, 25210, 50420, 421007, 842014, 1684028, 2105035, 4210070, 8420140]

約数ペア:

[(1, 8420140), (2, 4210070), (4, 2105035), (5, 1684028), (10, 842014), (20, 421007), (167, 50420), (334, 25210), (668, 12605), (835, 10084), (1670, 5042), (2521, 3340)]