28753885

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{7867}}^1$

素因数の和:7932

約数の個数: 16

約数和(自身を含む): 37388736

約数和(自身を除く): 8634851

約数列:

[1, 5, 17, 43, 85, 215, 731, 3655, 7867, 39335, 133739, 338281, 668695, 1691405, 5750777, 28753885]

約数ペア:

[(1, 28753885), (5, 5750777), (17, 1691405), (43, 668695), (85, 338281), (215, 133739), (731, 39335), (3655, 7867)]