28179920

素因数分解:

$2^4\times 5^1\times {\mathrm{352249}}^1$

素因数の和:352262

約数の個数: 20

約数和(自身を含む): 65518500

約数和(自身を除く): 37338580

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 352249, 704498, 1408996, 1761245, 2817992, 3522490, 5635984, 7044980, 14089960, 28179920]

約数ペア:

[(1, 28179920), (2, 14089960), (4, 7044980), (5, 5635984), (8, 3522490), (10, 2817992), (16, 1761245), (20, 1408996), (40, 704498), (80, 352249)]