20239575

素因数分解:

$3^1\times 5^2\times {\mathrm{421}}^1\times {\mathrm{641}}^1$

素因数の和:1075

約数の個数: 24

約数和(自身を含む): 33594576

約数和(自身を除く): 13355001

約数列:

[1, 3, 5, 15, 25, 75, 421, 641, 1263, 1923, 2105, 3205, 6315, 9615, 10525, 16025, 31575, 48075, 269861, 809583, 1349305, 4047915, 6746525, 20239575]

約数ペア:

[(1, 20239575), (3, 6746525), (5, 4047915), (15, 1349305), (25, 809583), (75, 269861), (421, 48075), (641, 31575), (1263, 16025), (1923, 10525), (2105, 9615), (3205, 6315)]