13283780

素因数分解:

$2^2\times 5^1\times {\mathrm{809}}^1\times {\mathrm{821}}^1$

素因数の和:1639

約数の個数: 24

約数和(自身を含む): 27964440

約数和(自身を除く): 14680660

約数列:

[1, 2, 4, 5, 10, 20, 809, 821, 1618, 1642, 3236, 3284, 4045, 4105, 8090, 8210, 16180, 16420, 664189, 1328378, 2656756, 3320945, 6641890, 13283780]

約数ペア:

[(1, 13283780), (2, 6641890), (4, 3320945), (5, 2656756), (10, 1328378), (20, 664189), (809, 16420), (821, 16180), (1618, 8210), (1642, 8090), (3236, 4105), (3284, 4045)]