20528528

素因数分解:

$2^4\times {\mathrm{409}}^1\times {\mathrm{3137}}^1$

素因数の和:3554

約数の個数: 20

約数和(自身を含む): 39883980

約数和(自身を除く): 19355452

約数列:

[1, 2, 4, 8, 16, 409, 818, 1636, 3137, 3272, 6274, 6544, 12548, 25096, 50192, 1283033, 2566066, 5132132, 10264264, 20528528]

約数ペア:

[(1, 20528528), (2, 10264264), (4, 5132132), (8, 2566066), (16, 1283033), (409, 50192), (818, 25096), (1636, 12548), (3137, 6544), (3272, 6274)]