81540255

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{167}}^1\times {\mathrm{757}}^1$

素因数の和:975

約数の個数: 32

約数和(自身を含む): 134475264

約数和(自身を除く): 52935009

約数列:

[1, 3, 5, 15, 43, 129, 167, 215, 501, 645, 757, 835, 2271, 2505, 3785, 7181, 11355, 21543, 32551, 35905, 97653, 107715, 126419, 162755, 379257, 488265, 632095, 1896285, 5436017, 16308051, 27180085, 81540255]

約数ペア:

[(1, 81540255), (3, 27180085), (5, 16308051), (15, 5436017), (43, 1896285), (129, 632095), (167, 488265), (215, 379257), (501, 162755), (645, 126419), (757, 107715), (835, 97653), (2271, 35905), (2505, 32551), (3785, 21543), (7181, 11355)]