28178275

素因数分解:

$5^2\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{743}}^1$

素因数の和:831

約数の個数: 24

約数和(自身を含む): 36810144

約数和(自身を除く): 8631869

約数列:

[1, 5, 25, 37, 41, 185, 205, 743, 925, 1025, 1517, 3715, 7585, 18575, 27491, 30463, 37925, 137455, 152315, 687275, 761575, 1127131, 5635655, 28178275]

約数ペア:

[(1, 28178275), (5, 5635655), (25, 1127131), (37, 761575), (41, 687275), (185, 152315), (205, 137455), (743, 37925), (925, 30463), (1025, 27491), (1517, 18575), (3715, 7585)]