91271380

素因数分解:

$2^2\times 5^1\times {\mathrm{809}}^1\times {\mathrm{5641}}^1$

素因数の和:6459

約数の個数: 24

約数和(自身を含む): 191940840

約数和(自身を除く): 100669460

約数列:

[1, 2, 4, 5, 10, 20, 809, 1618, 3236, 4045, 5641, 8090, 11282, 16180, 22564, 28205, 56410, 112820, 4563569, 9127138, 18254276, 22817845, 45635690, 91271380]

約数ペア:

[(1, 91271380), (2, 45635690), (4, 22817845), (5, 18254276), (10, 9127138), (20, 4563569), (809, 112820), (1618, 56410), (3236, 28205), (4045, 22564), (5641, 16180), (8090, 11282)]