78156080

素因数分解:

$2^4\times 5^1\times {\mathrm{976951}}^1$

素因数の和:976964

約数の個数: 20

約数和(自身を含む): 181713072

約数和(自身を除く): 103556992

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 976951, 1953902, 3907804, 4884755, 7815608, 9769510, 15631216, 19539020, 39078040, 78156080]

約数ペア:

[(1, 78156080), (2, 39078040), (4, 19539020), (5, 15631216), (8, 9769510), (10, 7815608), (16, 4884755), (20, 3907804), (40, 1953902), (80, 976951)]