19668981025

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{326863}}^1$

素因数の和:326985

約数の個数: 24

約数和(自身を含む): 25534615680

約数和(自身を除く): 5865634655

約数列:

[1, 5, 25, 29, 83, 145, 415, 725, 2075, 2407, 12035, 60175, 326863, 1634315, 8171575, 9479027, 27129629, 47395135, 135648145, 236975675, 678240725, 786759241, 3933796205, 19668981025]

約数ペア:

[(1, 19668981025), (5, 3933796205), (25, 786759241), (29, 678240725), (83, 236975675), (145, 135648145), (415, 47395135), (725, 27129629), (2075, 9479027), (2407, 8171575), (12035, 1634315), (60175, 326863)]