28246220

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{10781}}^1$

素因数の和:10921

約数の個数: 24

約数和(自身を含む): 59775408

約数和(自身を除く): 31529188

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 10781, 21562, 43124, 53905, 107810, 215620, 1412311, 2824622, 5649244, 7061555, 14123110, 28246220]

約数ペア:

[(1, 28246220), (2, 14123110), (4, 7061555), (5, 5649244), (10, 2824622), (20, 1412311), (131, 215620), (262, 107810), (524, 53905), (655, 43124), (1310, 21562), (2620, 10781)]