20455088

素因数分解:

$2^4\times {\mathrm{263}}^1\times {\mathrm{4861}}^1$

素因数の和:5132

約数の個数: 20

約数和(自身を含む): 39790608

約数和(自身を除く): 19335520

約数列:

[1, 2, 4, 8, 16, 263, 526, 1052, 2104, 4208, 4861, 9722, 19444, 38888, 77776, 1278443, 2556886, 5113772, 10227544, 20455088]

約数ペア:

[(1, 20455088), (2, 10227544), (4, 5113772), (8, 2556886), (16, 1278443), (263, 77776), (526, 38888), (1052, 19444), (2104, 9722), (4208, 4861)]