28268925

素因数分解:

$3^1\times 5^2\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{167}}^1$

素因数の和:278

約数の個数: 48

約数和(自身を含む): 49080192

約数和(自身を除く): 20811267

約数列:

[1, 3, 5, 15, 25, 37, 61, 75, 111, 167, 183, 185, 305, 501, 555, 835, 915, 925, 1525, 2257, 2505, 2775, 4175, 4575, 6179, 6771, 10187, 11285, 12525, 18537, 30561, 30895, 33855, 50935, 56425, 92685, 152805, 154475, 169275, 254675, 376919, 463425, 764025, 1130757, 1884595, 5653785, 9422975, 28268925]

約数ペア:

[(1, 28268925), (3, 9422975), (5, 5653785), (15, 1884595), (25, 1130757), (37, 764025), (61, 463425), (75, 376919), (111, 254675), (167, 169275), (183, 154475), (185, 152805), (305, 92685), (501, 56425), (555, 50935), (835, 33855), (915, 30895), (925, 30561), (1525, 18537), (2257, 12525), (2505, 11285), (2775, 10187), (4175, 6771), (4575, 6179)]