28657565

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{3251}}^1$

素因数の和:3340

約数の個数: 16

約数和(自身を含む): 36058176

約数和(自身を除く): 7400611

約数列:

[1, 5, 41, 43, 205, 215, 1763, 3251, 8815, 16255, 133291, 139793, 666455, 698965, 5731513, 28657565]

約数ペア:

[(1, 28657565), (5, 5731513), (41, 698965), (43, 666455), (205, 139793), (215, 133291), (1763, 16255), (3251, 8815)]