1320200080

素因数分解:

$2^4\times 5^1\times {\mathrm{16502501}}^1$

素因数の和:16502514

約数の個数: 20

約数和(自身を含む): 3069465372

約数和(自身を除く): 1749265292

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 16502501, 33005002, 66010004, 82512505, 132020008, 165025010, 264040016, 330050020, 660100040, 1320200080]

約数ペア:

[(1, 1320200080), (2, 660100040), (4, 330050020), (5, 264040016), (8, 165025010), (10, 132020008), (16, 82512505), (20, 66010004), (40, 33005002), (80, 16502501)]