40789780

素因数分解:

$2^2\times 5^1\times {\mathrm{809}}^1\times {\mathrm{2521}}^1$

素因数の和:3339

約数の個数: 24

約数和(自身を含む): 85798440

約数和(自身を除く): 45008660

約数列:

[1, 2, 4, 5, 10, 20, 809, 1618, 2521, 3236, 4045, 5042, 8090, 10084, 12605, 16180, 25210, 50420, 2039489, 4078978, 8157956, 10197445, 20394890, 40789780]

約数ペア:

[(1, 40789780), (2, 20394890), (4, 10197445), (5, 8157956), (10, 4078978), (20, 2039489), (809, 50420), (1618, 25210), (2521, 16180), (3236, 12605), (4045, 10084), (5042, 8090)]