205984405

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{251}}^1\times {\mathrm{347}}^1$

素因数の和:657

約数の個数: 32

約数和(自身を含む): 277820928

約数和(自身を除く): 71836523

約数列:

[1, 5, 11, 43, 55, 215, 251, 347, 473, 1255, 1735, 2365, 2761, 3817, 10793, 13805, 14921, 19085, 53965, 74605, 87097, 118723, 164131, 435485, 593615, 820655, 958067, 3745171, 4790335, 18725855, 41196881, 205984405]

約数ペア:

[(1, 205984405), (5, 41196881), (11, 18725855), (43, 4790335), (55, 3745171), (215, 958067), (251, 820655), (347, 593615), (473, 435485), (1255, 164131), (1735, 118723), (2365, 87097), (2761, 74605), (3817, 53965), (10793, 19085), (13805, 14921)]