19242140

素因数分解:

$2^2\times 5^1\times {\mathrm{461}}^1\times {\mathrm{2087}}^1$

素因数の和:2557

約数の個数: 24

約数和(自身を含む): 40515552

約数和(自身を除く): 21273412

約数列:

[1, 2, 4, 5, 10, 20, 461, 922, 1844, 2087, 2305, 4174, 4610, 8348, 9220, 10435, 20870, 41740, 962107, 1924214, 3848428, 4810535, 9621070, 19242140]

約数ペア:

[(1, 19242140), (2, 9621070), (4, 4810535), (5, 3848428), (10, 1924214), (20, 962107), (461, 41740), (922, 20870), (1844, 10435), (2087, 9220), (2305, 8348), (4174, 4610)]