28723280

素因数分解:

$2^4\times 5^1\times {\mathrm{359041}}^1$

素因数の和:359054

約数の個数: 20

約数和(自身を含む): 66781812

約数和(自身を除く): 38058532

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 359041, 718082, 1436164, 1795205, 2872328, 3590410, 5744656, 7180820, 14361640, 28723280]

約数ペア:

[(1, 28723280), (2, 14361640), (4, 7180820), (5, 5744656), (8, 3590410), (10, 2872328), (16, 1795205), (20, 1436164), (40, 718082), (80, 359041)]