20078668

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{349}}^1\times {\mathrm{757}}^1$

素因数の和:1129

約数の個数: 24

約数和(自身を含む): 37142000

約数和(自身を除く): 17063332

約数列:

[1, 2, 4, 19, 38, 76, 349, 698, 757, 1396, 1514, 3028, 6631, 13262, 14383, 26524, 28766, 57532, 264193, 528386, 1056772, 5019667, 10039334, 20078668]

約数ペア:

[(1, 20078668), (2, 10039334), (4, 5019667), (19, 1056772), (38, 528386), (76, 264193), (349, 57532), (698, 28766), (757, 26524), (1396, 14383), (1514, 13262), (3028, 6631)]