7282305

素因数分解:

$3^4\times 5^1\times {\mathrm{17981}}^1$

素因数の和:17998

約数の個数: 20

約数和(自身を含む): 13054932

約数和(自身を除く): 5772627

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 17981, 53943, 89905, 161829, 269715, 485487, 809145, 1456461, 2427435, 7282305]

約数ペア:

[(1, 7282305), (3, 2427435), (5, 1456461), (9, 809145), (15, 485487), (27, 269715), (45, 161829), (81, 89905), (135, 53943), (405, 17981)]