28519275

素因数分解:

$3^1\times 5^2\times {\mathrm{73}}^1\times {\mathrm{5209}}^1$

素因数の和:5295

約数の個数: 24

約数和(自身を含む): 47806960

約数和(自身を除く): 19287685

約数列:

[1, 3, 5, 15, 25, 73, 75, 219, 365, 1095, 1825, 5209, 5475, 15627, 26045, 78135, 130225, 380257, 390675, 1140771, 1901285, 5703855, 9506425, 28519275]

約数ペア:

[(1, 28519275), (3, 9506425), (5, 5703855), (15, 1901285), (25, 1140771), (73, 390675), (75, 380257), (219, 130225), (365, 78135), (1095, 26045), (1825, 15627), (5209, 5475)]