28263140

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{9001}}^1$

素因数の和:9167

約数の個数: 24

約数和(自身を含む): 59737272

約数和(自身を除く): 31474132

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 9001, 18002, 36004, 45005, 90010, 180020, 1413157, 2826314, 5652628, 7065785, 14131570, 28263140]

約数ペア:

[(1, 28263140), (2, 14131570), (4, 7065785), (5, 5652628), (10, 2826314), (20, 1413157), (157, 180020), (314, 90010), (628, 45005), (785, 36004), (1570, 18002), (3140, 9001)]