128441648

素因数分解:

$2^4\times {\mathrm{443}}^1\times {\mathrm{18121}}^1$

素因数の和:18572

約数の個数: 20

約数和(自身を含む): 249431208

約数和(自身を除く): 120989560

約数列:

[1, 2, 4, 8, 16, 443, 886, 1772, 3544, 7088, 18121, 36242, 72484, 144968, 289936, 8027603, 16055206, 32110412, 64220824, 128441648]

約数ペア:

[(1, 128441648), (2, 64220824), (4, 32110412), (8, 16055206), (16, 8027603), (443, 289936), (886, 144968), (1772, 72484), (3544, 36242), (7088, 18121)]