13305437980

素因数分解:

$2^2\times 5^1\times {\mathrm{821}}^1\times {\mathrm{810319}}^1$

素因数の和:811149

約数の個数: 24

約数和(自身を含む): 27975487680

約数和(自身を除く): 14670049700

約数列:

[1, 2, 4, 5, 10, 20, 821, 1642, 3284, 4105, 8210, 16420, 810319, 1620638, 3241276, 4051595, 8103190, 16206380, 665271899, 1330543798, 2661087596, 3326359495, 6652718990, 13305437980]

約数ペア:

[(1, 13305437980), (2, 6652718990), (4, 3326359495), (5, 2661087596), (10, 1330543798), (20, 665271899), (821, 16206380), (1642, 8103190), (3284, 4051595), (4105, 3241276), (8210, 1620638), (16420, 810319)]