20880416

素因数分解:

$2^5\times {\mathrm{67}}^1\times {\mathrm{9739}}^1$

素因数の和:9816

約数の個数: 24

約数和(自身を含む): 41726160

約数和(自身を除く): 20845744

約数列:

[1, 2, 4, 8, 16, 32, 67, 134, 268, 536, 1072, 2144, 9739, 19478, 38956, 77912, 155824, 311648, 652513, 1305026, 2610052, 5220104, 10440208, 20880416]

約数ペア:

[(1, 20880416), (2, 10440208), (4, 5220104), (8, 2610052), (16, 1305026), (32, 652513), (67, 311648), (134, 155824), (268, 77912), (536, 38956), (1072, 19478), (2144, 9739)]