51108880

素因数分解:

$2^4\times 5^1\times {\mathrm{638861}}^1$

素因数の和:638874

約数の個数: 20

約数和(自身を含む): 118828332

約数和(自身を除く): 67719452

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 638861, 1277722, 2555444, 3194305, 5110888, 6388610, 10221776, 12777220, 25554440, 51108880]

約数ペア:

[(1, 51108880), (2, 25554440), (4, 12777220), (5, 10221776), (8, 6388610), (10, 5110888), (16, 3194305), (20, 2555444), (40, 1277722), (80, 638861)]