28276235

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{109}}^1\times {\mathrm{307}}^1$

素因数の和:447

約数の個数: 24

約数和(自身を含む): 37200240

約数和(自身を除く): 8924005

約数列:

[1, 5, 13, 65, 109, 169, 307, 545, 845, 1417, 1535, 3991, 7085, 18421, 19955, 33463, 51883, 92105, 167315, 259415, 435019, 2175095, 5655247, 28276235]

約数ペア:

[(1, 28276235), (5, 5655247), (13, 2175095), (65, 435019), (109, 259415), (169, 167315), (307, 92105), (545, 51883), (845, 33463), (1417, 19955), (1535, 18421), (3991, 7085)]