18780451748

素因数分解:

$2^2\times {\mathrm{64951}}^1\times {\mathrm{72287}}^1$

素因数の和:137242

約数の個数: 12

約数和(自身を含む): 32866751232

約数和(自身を除く): 14086299484

約数列:

[1, 2, 4, 64951, 72287, 129902, 144574, 259804, 289148, 4695112937, 9390225874, 18780451748]

約数ペア:

[(1, 18780451748), (2, 9390225874), (4, 4695112937), (64951, 289148), (72287, 259804), (129902, 144574)]