13309050380

素因数分解:

$2^2\times 5^1\times {\mathrm{821}}^1\times {\mathrm{810539}}^1$

素因数の和:811369

約数の個数: 24

約数和(自身を含む): 27983082960

約数和(自身を除く): 14674032580

約数列:

[1, 2, 4, 5, 10, 20, 821, 1642, 3284, 4105, 8210, 16420, 810539, 1621078, 3242156, 4052695, 8105390, 16210780, 665452519, 1330905038, 2661810076, 3327262595, 6654525190, 13309050380]

約数ペア:

[(1, 13309050380), (2, 6654525190), (4, 3327262595), (5, 2661810076), (10, 1330905038), (20, 665452519), (821, 16210780), (1642, 8105390), (3284, 4052695), (4105, 3242156), (8210, 1621078), (16420, 810539)]