20228425

素因数分解:

$5^2\times 7^4\times {\mathrm{337}}^1$

素因数の和:375

約数の個数: 30

約数和(自身を含む): 29348878

約数和(自身を除く): 9120453

約数列:

[1, 5, 7, 25, 35, 49, 175, 245, 337, 343, 1225, 1685, 1715, 2359, 2401, 8425, 8575, 11795, 12005, 16513, 58975, 60025, 82565, 115591, 412825, 577955, 809137, 2889775, 4045685, 20228425]

約数ペア:

[(1, 20228425), (5, 4045685), (7, 2889775), (25, 809137), (35, 577955), (49, 412825), (175, 115591), (245, 82565), (337, 60025), (343, 58975), (1225, 16513), (1685, 12005), (1715, 11795), (2359, 8575), (2401, 8425)]