20265790

素因数分解:

$2^1\times 5^1\times {\mathrm{163}}^1\times {\mathrm{12433}}^1$

素因数の和:12603

約数の個数: 16

約数和(自身を含む): 36705168

約数和(自身を除く): 16439378

約数列:

[1, 2, 5, 10, 163, 326, 815, 1630, 12433, 24866, 62165, 124330, 2026579, 4053158, 10132895, 20265790]

約数ペア:

[(1, 20265790), (2, 10132895), (5, 4053158), (10, 2026579), (163, 124330), (326, 62165), (815, 24866), (1630, 12433)]