28004515

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{72739}}^1$

素因数の和:72762

約数の個数: 16

約数和(自身を含む): 41898240

約数和(自身を除く): 13893725

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 72739, 363695, 509173, 800129, 2545865, 4000645, 5600903, 28004515]

約数ペア:

[(1, 28004515), (5, 5600903), (7, 4000645), (11, 2545865), (35, 800129), (55, 509173), (77, 363695), (385, 72739)]