7800080

素因数分解:

$2^4\times 5^1\times {\mathrm{97501}}^1$

素因数の和:97514

約数の個数: 20

約数和(自身を含む): 18135372

約数和(自身を除く): 10335292

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 97501, 195002, 390004, 487505, 780008, 975010, 1560016, 1950020, 3900040, 7800080]

約数ペア:

[(1, 7800080), (2, 3900040), (4, 1950020), (5, 1560016), (8, 975010), (10, 780008), (16, 487505), (20, 390004), (40, 195002), (80, 97501)]