72455715

素因数分解:

$3^4\times 5^1\times {\mathrm{178903}}^1$

素因数の和:178920

約数の個数: 20

約数和(自身を含む): 129884304

約数和(自身を除く): 57428589

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 178903, 536709, 894515, 1610127, 2683545, 4830381, 8050635, 14491143, 24151905, 72455715]

約数ペア:

[(1, 72455715), (3, 24151905), (5, 14491143), (9, 8050635), (15, 4830381), (27, 2683545), (45, 1610127), (81, 894515), (135, 536709), (405, 178903)]