78432080

素因数分解:

$2^4\times 5^1\times {\mathrm{980401}}^1$

素因数の和:980414

約数の個数: 20

約数和(自身を含む): 182354772

約数和(自身を除く): 103922692

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 980401, 1960802, 3921604, 4902005, 7843208, 9804010, 15686416, 19608020, 39216040, 78432080]

約数ペア:

[(1, 78432080), (2, 39216040), (4, 19608020), (5, 15686416), (8, 9804010), (10, 7843208), (16, 4902005), (20, 3921604), (40, 1960802), (80, 980401)]