28179725

素因数分解:

$5^2\times 7^1\times {\mathrm{283}}^1\times {\mathrm{569}}^1$

素因数の和:869

約数の個数: 24

約数和(自身を含む): 40146240

約数和(自身を除く): 11966515

約数列:

[1, 5, 7, 25, 35, 175, 283, 569, 1415, 1981, 2845, 3983, 7075, 9905, 14225, 19915, 49525, 99575, 161027, 805135, 1127189, 4025675, 5635945, 28179725]

約数ペア:

[(1, 28179725), (5, 5635945), (7, 4025675), (25, 1127189), (35, 805135), (175, 161027), (283, 99575), (569, 49525), (1415, 19915), (1981, 14225), (2845, 9905), (3983, 7075)]