8991895

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{163}}^1$

素因数の和:255

約数の個数: 32

約数和(自身を含む): 12752640

約数和(自身を除く): 3760745

約数列:

[1, 5, 11, 17, 55, 59, 85, 163, 187, 295, 649, 815, 935, 1003, 1793, 2771, 3245, 5015, 8965, 9617, 11033, 13855, 30481, 48085, 55165, 105787, 152405, 163489, 528935, 817445, 1798379, 8991895]

約数ペア:

[(1, 8991895), (5, 1798379), (11, 817445), (17, 528935), (55, 163489), (59, 152405), (85, 105787), (163, 55165), (187, 48085), (295, 30481), (649, 13855), (815, 11033), (935, 9617), (1003, 8965), (1793, 5015), (2771, 3245)]