28813425

素因数分解:

$3^1\times 5^2\times {\mathrm{157}}^1\times {\mathrm{2447}}^1$

素因数の和:2617

約数の個数: 24

約数和(自身を含む): 47961216

約数和(自身を除く): 19147791

約数列:

[1, 3, 5, 15, 25, 75, 157, 471, 785, 2355, 2447, 3925, 7341, 11775, 12235, 36705, 61175, 183525, 384179, 1152537, 1920895, 5762685, 9604475, 28813425]

約数ペア:

[(1, 28813425), (3, 9604475), (5, 5762685), (15, 1920895), (25, 1152537), (75, 384179), (157, 183525), (471, 61175), (785, 36705), (2355, 12235), (2447, 11775), (3925, 7341)]