20513728

素因数分解:

$2^6\times {\mathrm{251}}^1\times {\mathrm{1277}}^1$

素因数の和:1540

約数の個数: 28

約数和(自身を含む): 40901112

約数和(自身を除く): 20387384

約数列:

[1, 2, 4, 8, 16, 32, 64, 251, 502, 1004, 1277, 2008, 2554, 4016, 5108, 8032, 10216, 16064, 20432, 40864, 81728, 320527, 641054, 1282108, 2564216, 5128432, 10256864, 20513728]

約数ペア:

[(1, 20513728), (2, 10256864), (4, 5128432), (8, 2564216), (16, 1282108), (32, 641054), (64, 320527), (251, 81728), (502, 40864), (1004, 20432), (1277, 16064), (2008, 10216), (2554, 8032), (4016, 5108)]