28297725

素因数分解:

$3^1\times 5^2\times {\mathrm{307}}^1\times {\mathrm{1229}}^1$

素因数の和:1549

約数の個数: 24

約数和(自身を含む): 46976160

約数和(自身を除く): 18678435

約数列:

[1, 3, 5, 15, 25, 75, 307, 921, 1229, 1535, 3687, 4605, 6145, 7675, 18435, 23025, 30725, 92175, 377303, 1131909, 1886515, 5659545, 9432575, 28297725]

約数ペア:

[(1, 28297725), (3, 9432575), (5, 5659545), (15, 1886515), (25, 1131909), (75, 377303), (307, 92175), (921, 30725), (1229, 23025), (1535, 18435), (3687, 7675), (4605, 6145)]