28742475

素因数分解:

$3^1\times 5^2\times {\mathrm{409}}^1\times {\mathrm{937}}^1$

素因数の和:1359

約数の個数: 24

約数和(自身を含む): 47687920

約数和(自身を除く): 18945445

約数列:

[1, 3, 5, 15, 25, 75, 409, 937, 1227, 2045, 2811, 4685, 6135, 10225, 14055, 23425, 30675, 70275, 383233, 1149699, 1916165, 5748495, 9580825, 28742475]

約数ペア:

[(1, 28742475), (3, 9580825), (5, 5748495), (15, 1916165), (25, 1149699), (75, 383233), (409, 70275), (937, 30675), (1227, 23425), (2045, 14055), (2811, 10225), (4685, 6135)]