25800080

素因数分解:

$2^4\times 5^1\times {\mathrm{322501}}^1$

素因数の和:322514

約数の個数: 20

約数和(自身を含む): 59985372

約数和(自身を除く): 34185292

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 322501, 645002, 1290004, 1612505, 2580008, 3225010, 5160016, 6450020, 12900040, 25800080]

約数ペア:

[(1, 25800080), (2, 12900040), (4, 6450020), (5, 5160016), (8, 3225010), (10, 2580008), (16, 1612505), (20, 1290004), (40, 645002), (80, 322501)]