31145715

素因数分解:

$3^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{1451}}^1$

素因数の和:1521

約数の個数: 40

約数和(自身を含む): 56924208

約数和(自身を除く): 25778493

約数列:

[1, 3, 5, 9, 15, 27, 45, 53, 81, 135, 159, 265, 405, 477, 795, 1431, 1451, 2385, 4293, 4353, 7155, 7255, 13059, 21465, 21765, 39177, 65295, 76903, 117531, 195885, 230709, 384515, 587655, 692127, 1153545, 2076381, 3460635, 6229143, 10381905, 31145715]

約数ペア:

[(1, 31145715), (3, 10381905), (5, 6229143), (9, 3460635), (15, 2076381), (27, 1153545), (45, 692127), (53, 587655), (81, 384515), (135, 230709), (159, 195885), (265, 117531), (405, 76903), (477, 65295), (795, 39177), (1431, 21765), (1451, 21465), (2385, 13059), (4293, 7255), (4353, 7155)]