51965360

素因数分解:

$2^4\times 5^1\times {\mathrm{649567}}^1$

素因数の和:649580

約数の個数: 20

約数和(自身を含む): 120819648

約数和(自身を除く): 68854288

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 649567, 1299134, 2598268, 3247835, 5196536, 6495670, 10393072, 12991340, 25982680, 51965360]

約数ペア:

[(1, 51965360), (2, 25982680), (4, 12991340), (5, 10393072), (8, 6495670), (10, 5196536), (16, 3247835), (20, 2598268), (40, 1299134), (80, 649567)]