138021560

素因数分解:

$2^3\times 5^1\times {\mathrm{3450539}}^1$

素因数の和:3450550

約数の個数: 16

約数和(自身を含む): 310548600

約数和(自身を除く): 172527040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3450539, 6901078, 13802156, 17252695, 27604312, 34505390, 69010780, 138021560]

約数ペア:

[(1, 138021560), (2, 69010780), (4, 34505390), (5, 27604312), (8, 17252695), (10, 13802156), (20, 6901078), (40, 3450539)]