28712755

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{2789}}^1$

素因数の和:2894

約数の個数: 16

約数和(自身を含む): 36158400

約数和(自身を除く): 7445645

約数列:

[1, 5, 29, 71, 145, 355, 2059, 2789, 10295, 13945, 80881, 198019, 404405, 990095, 5742551, 28712755]

約数ペア:

[(1, 28712755), (5, 5742551), (29, 990095), (71, 404405), (145, 198019), (355, 80881), (2059, 13945), (2789, 10295)]