78424520

素因数分解:

$2^3\times 5^1\times {\mathrm{1960613}}^1$

素因数の和:1960624

約数の個数: 16

約数和(自身を含む): 176455260

約数和(自身を除く): 98030740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1960613, 3921226, 7842452, 9803065, 15684904, 19606130, 39212260, 78424520]

約数ペア:

[(1, 78424520), (2, 39212260), (4, 19606130), (5, 15684904), (8, 9803065), (10, 7842452), (20, 3921226), (40, 1960613)]