216520415

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{41759}}^1$

素因数の和:41842

約数の個数: 16

約数和(自身を含む): 279624960

約数和(自身を除く): 63104545

約数列:

[1, 5, 17, 61, 85, 305, 1037, 5185, 41759, 208795, 709903, 2547299, 3549515, 12736495, 43304083, 216520415]

約数ペア:

[(1, 216520415), (5, 43304083), (17, 12736495), (61, 3549515), (85, 2547299), (305, 709903), (1037, 208795), (5185, 41759)]