28320080

素因数分解:

$2^4\times 5^1\times {\mathrm{354001}}^1$

素因数の和:354014

約数の個数: 20

約数和(自身を含む): 65844372

約数和(自身を除く): 37524292

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 354001, 708002, 1416004, 1770005, 2832008, 3540010, 5664016, 7080020, 14160040, 28320080]

約数ペア:

[(1, 28320080), (2, 14160040), (4, 7080020), (5, 5664016), (8, 3540010), (10, 2832008), (16, 1770005), (20, 1416004), (40, 708002), (80, 354001)]