258432080

素因数分解:

$2^4\times 5^1\times {\mathrm{3230401}}^1$

素因数の和:3230414

約数の個数: 20

約数和(自身を含む): 600854772

約数和(自身を除く): 342422692

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3230401, 6460802, 12921604, 16152005, 25843208, 32304010, 51686416, 64608020, 129216040, 258432080]

約数ペア:

[(1, 258432080), (2, 129216040), (4, 64608020), (5, 51686416), (8, 32304010), (10, 25843208), (16, 16152005), (20, 12921604), (40, 6460802), (80, 3230401)]