20178484

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{227}}^1\times {\mathrm{313}}^1$

素因数の和:615

約数の個数: 24

約数和(自身を含む): 36082368

約数和(自身を除く): 15903884

約数列:

[1, 2, 4, 71, 142, 227, 284, 313, 454, 626, 908, 1252, 16117, 22223, 32234, 44446, 64468, 71051, 88892, 142102, 284204, 5044621, 10089242, 20178484]

約数ペア:

[(1, 20178484), (2, 10089242), (4, 5044621), (71, 284204), (142, 142102), (227, 88892), (284, 71051), (313, 64468), (454, 44446), (626, 32234), (908, 22223), (1252, 16117)]