130920080

素因数分解:

$2^4\times 5^1\times {\mathrm{1636501}}^1$

素因数の和:1636514

約数の個数: 20

約数和(自身を含む): 304389372

約数和(自身を除く): 173469292

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1636501, 3273002, 6546004, 8182505, 13092008, 16365010, 26184016, 32730020, 65460040, 130920080]

約数ペア:

[(1, 130920080), (2, 65460040), (4, 32730020), (5, 26184016), (8, 16365010), (10, 13092008), (16, 8182505), (20, 6546004), (40, 3273002), (80, 1636501)]