28745725

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{283}}^1$

素因数の和:549

約数の個数: 24

約数和(自身を含む): 38033280

約数和(自身を除く): 9287555

約数列:

[1, 5, 17, 25, 85, 239, 283, 425, 1195, 1415, 4063, 4811, 5975, 7075, 20315, 24055, 67637, 101575, 120275, 338185, 1149829, 1690925, 5749145, 28745725]

約数ペア:

[(1, 28745725), (5, 5749145), (17, 1690925), (25, 1149829), (85, 338185), (239, 120275), (283, 101575), (425, 67637), (1195, 24055), (1415, 20315), (4063, 7075), (4811, 5975)]