28478275

素因数分解:

$5^2\times 7^1\times {\mathrm{353}}^1\times {\mathrm{461}}^1$

素因数の和:831

約数の個数: 24

約数和(自身を含む): 40559904

約数和(自身を除く): 12081629

約数列:

[1, 5, 7, 25, 35, 175, 353, 461, 1765, 2305, 2471, 3227, 8825, 11525, 12355, 16135, 61775, 80675, 162733, 813665, 1139131, 4068325, 5695655, 28478275]

約数ペア:

[(1, 28478275), (5, 5695655), (7, 4068325), (25, 1139131), (35, 813665), (175, 162733), (353, 80675), (461, 61775), (1765, 16135), (2305, 12355), (2471, 11525), (3227, 8825)]