15408940

素因数分解:

$2^2\times 5^1\times {\mathrm{770447}}^1$

素因数の和:770456

約数の個数: 12

約数和(自身を含む): 32358816

約数和(自身を除く): 16949876

約数列:

[1, 2, 4, 5, 10, 20, 770447, 1540894, 3081788, 3852235, 7704470, 15408940]

約数ペア:

[(1, 15408940), (2, 7704470), (4, 3852235), (5, 3081788), (10, 1540894), (20, 770447)]