20530688

素因数分解:

$2^9\times {\mathrm{40099}}^1$

素因数の和:40117

約数の個数: 20

約数和(自身を含む): 41022300

約数和(自身を除く): 20491612

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 40099, 80198, 160396, 320792, 641584, 1283168, 2566336, 5132672, 10265344, 20530688]

約数ペア:

[(1, 20530688), (2, 10265344), (4, 5132672), (8, 2566336), (16, 1283168), (32, 641584), (64, 320792), (128, 160396), (256, 80198), (512, 40099)]