209220155

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{313}}^1\times {\mathrm{3109}}^1$

素因数の和:3470

約数の個数: 16

約数和(自身を含む): 257806560

約数和(自身を除く): 48586405

約数列:

[1, 5, 43, 215, 313, 1565, 3109, 13459, 15545, 67295, 133687, 668435, 973117, 4865585, 41844031, 209220155]

約数ペア:

[(1, 209220155), (5, 41844031), (43, 4865585), (215, 973117), (313, 668435), (1565, 133687), (3109, 67295), (13459, 15545)]