28636925

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1567}}^1$

素因数の和:1637

約数の個数: 24

約数和(自身を含む): 38497536

約数和(自身を除く): 9860611

約数列:

[1, 5, 17, 25, 43, 85, 215, 425, 731, 1075, 1567, 3655, 7835, 18275, 26639, 39175, 67381, 133195, 336905, 665975, 1145477, 1684525, 5727385, 28636925]

約数ペア:

[(1, 28636925), (5, 5727385), (17, 1684525), (25, 1145477), (43, 665975), (85, 336905), (215, 133195), (425, 67381), (731, 39175), (1075, 26639), (1567, 18275), (3655, 7835)]