1311009745

素因数分解:

$5^1\times {\mathrm{389}}^1\times {\mathrm{821}}^2$

素因数の和:2036

約数の個数: 12

約数和(自身を含む): 1579179420

約数和(自身を除く): 268169675

約数列:

[1, 5, 389, 821, 1945, 4105, 319369, 674041, 1596845, 3370205, 262201949, 1311009745]

約数ペア:

[(1, 1311009745), (5, 262201949), (389, 3370205), (821, 1596845), (1945, 674041), (4105, 319369)]