398120780

素因数分解:

$2^2\times 5^1\times {\mathrm{5153}}^1\times {\mathrm{3863}}^1$

素因数の和:9025

約数の個数: 24

約数和(自身を含む): 836432352

約数和(自身を除く): 438311572

約数列:

[1, 2, 4, 5, 10, 20, 3863, 5153, 7726, 10306, 15452, 19315, 20612, 25765, 38630, 51530, 77260, 103060, 19906039, 39812078, 79624156, 99530195, 199060390, 398120780]

約数ペア:

[(1, 398120780), (2, 199060390), (4, 99530195), (5, 79624156), (10, 39812078), (20, 19906039), (3863, 103060), (5153, 77260), (7726, 51530), (10306, 38630), (15452, 25765), (19315, 20612)]