201391355

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{1009}}^1$

素因数の和:1235

約数の個数: 32

約数和(自身を含む): 279244800

約数和(自身を除く): 77853445

約数列:

[1, 5, 11, 19, 55, 95, 191, 209, 955, 1009, 1045, 2101, 3629, 5045, 10505, 11099, 18145, 19171, 39919, 55495, 95855, 192719, 199595, 210881, 963595, 1054405, 2119909, 3661661, 10599545, 18308305, 40278271, 201391355]

約数ペア:

[(1, 201391355), (5, 40278271), (11, 18308305), (19, 10599545), (55, 3661661), (95, 2119909), (191, 1054405), (209, 963595), (955, 210881), (1009, 199595), (1045, 192719), (2101, 95855), (3629, 55495), (5045, 39919), (10505, 19171), (11099, 18145)]