1281015

素因数分解:

$3^4\times 5^1\times {\mathrm{3163}}^1$

素因数の和:3180

約数の個数: 20

約数和(自身を含む): 2297064

約数和(自身を除く): 1016049

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 3163, 9489, 15815, 28467, 47445, 85401, 142335, 256203, 427005, 1281015]

約数ペア:

[(1, 1281015), (3, 427005), (5, 256203), (9, 142335), (15, 85401), (27, 47445), (45, 28467), (81, 15815), (135, 9489), (405, 3163)]