78072080

素因数分解:

$2^4\times 5^1\times {\mathrm{975901}}^1$

素因数の和:975914

約数の個数: 20

約数和(自身を含む): 181517772

約数和(自身を除く): 103445692

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 975901, 1951802, 3903604, 4879505, 7807208, 9759010, 15614416, 19518020, 39036040, 78072080]

約数ペア:

[(1, 78072080), (2, 39036040), (4, 19518020), (5, 15614416), (8, 9759010), (10, 7807208), (16, 4879505), (20, 3903604), (40, 1951802), (80, 975901)]