51538160

素因数分解:

$2^4\times 5^1\times {\mathrm{644227}}^1$

素因数の和:644240

約数の個数: 20

約数和(自身を含む): 119826408

約数和(自身を除く): 68288248

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 644227, 1288454, 2576908, 3221135, 5153816, 6442270, 10307632, 12884540, 25769080, 51538160]

約数ペア:

[(1, 51538160), (2, 25769080), (4, 12884540), (5, 10307632), (8, 6442270), (10, 5153816), (16, 3221135), (20, 2576908), (40, 1288454), (80, 644227)]