128165716

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{240913}}^1$

素因数の和:240943

約数の個数: 24

約数和(自身を含む): 269823680

約数和(自身を除く): 141657964

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 240913, 481826, 963652, 1686391, 3372782, 4577347, 6745564, 9154694, 18309388, 32041429, 64082858, 128165716]

約数ペア:

[(1, 128165716), (2, 64082858), (4, 32041429), (7, 18309388), (14, 9154694), (19, 6745564), (28, 4577347), (38, 3372782), (76, 1686391), (133, 963652), (266, 481826), (532, 240913)]