247865185

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{337}}^1\times {\mathrm{509}}^1$

素因数の和:885

約数の個数: 24

約数和(自身を含む): 317523960

約数和(自身を除く): 69658775

約数列:

[1, 5, 17, 85, 289, 337, 509, 1445, 1685, 2545, 5729, 8653, 28645, 43265, 97393, 147101, 171533, 486965, 735505, 857665, 2916061, 14580305, 49573037, 247865185]

約数ペア:

[(1, 247865185), (5, 49573037), (17, 14580305), (85, 2916061), (289, 857665), (337, 735505), (509, 486965), (1445, 171533), (1685, 147101), (2545, 97393), (5729, 43265), (8653, 28645)]