28155575

素因数分解:

$5^2\times 7^1\times {\mathrm{349}}^1\times {\mathrm{461}}^1$

素因数の和:827

約数の個数: 24

約数和(自身を含む): 40101600

約数和(自身を除く): 11946025

約数列:

[1, 5, 7, 25, 35, 175, 349, 461, 1745, 2305, 2443, 3227, 8725, 11525, 12215, 16135, 61075, 80675, 160889, 804445, 1126223, 4022225, 5631115, 28155575]

約数ペア:

[(1, 28155575), (5, 5631115), (7, 4022225), (25, 1126223), (35, 804445), (175, 160889), (349, 80675), (461, 61075), (1745, 16135), (2305, 12215), (2443, 11525), (3227, 8725)]