15122820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{307}}^1\times {\mathrm{821}}^1$

素因数の和:1140

約数の個数: 48

約数和(自身を含む): 42533568

約数和(自身を除く): 27410748

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 307, 614, 821, 921, 1228, 1535, 1642, 1842, 2463, 3070, 3284, 3684, 4105, 4605, 4926, 6140, 8210, 9210, 9852, 12315, 16420, 18420, 24630, 49260, 252047, 504094, 756141, 1008188, 1260235, 1512282, 2520470, 3024564, 3780705, 5040940, 7561410, 15122820]

約数ペア:

[(1, 15122820), (2, 7561410), (3, 5040940), (4, 3780705), (5, 3024564), (6, 2520470), (10, 1512282), (12, 1260235), (15, 1008188), (20, 756141), (30, 504094), (60, 252047), (307, 49260), (614, 24630), (821, 18420), (921, 16420), (1228, 12315), (1535, 9852), (1642, 9210), (1842, 8210), (2463, 6140), (3070, 4926), (3284, 4605), (3684, 4105)]