258551905

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{167}}^1\times {\mathrm{379}}^1$

素因数の和:613

約数の個数: 32

約数和(自身を含む): 337075200

約数和(自身を除く): 78523295

約数列:

[1, 5, 19, 43, 95, 167, 215, 379, 817, 835, 1895, 3173, 4085, 7181, 7201, 15865, 16297, 35905, 36005, 63293, 81485, 136439, 309643, 316465, 682195, 1202567, 1548215, 2721599, 6012835, 13607995, 51710381, 258551905]

約数ペア:

[(1, 258551905), (5, 51710381), (19, 13607995), (43, 6012835), (95, 2721599), (167, 1548215), (215, 1202567), (379, 682195), (817, 316465), (835, 309643), (1895, 136439), (3173, 81485), (4085, 63293), (7181, 36005), (7201, 35905), (15865, 16297)]