1298820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{21647}}^1$

素因数の和:21659

約数の個数: 24

約数和(自身を含む): 3636864

約数和(自身を除く): 2338044

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 21647, 43294, 64941, 86588, 108235, 129882, 216470, 259764, 324705, 432940, 649410, 1298820]

約数ペア:

[(1, 1298820), (2, 649410), (3, 432940), (4, 324705), (5, 259764), (6, 216470), (10, 129882), (12, 108235), (15, 86588), (20, 64941), (30, 43294), (60, 21647)]