261787128

素因数分解:

$2^3\times 3^1\times {\mathrm{163}}^1\times {\mathrm{66919}}^1$

素因数の和:67091

約数の個数: 32

約数和(自身を含む): 658492800

約数和(自身を除く): 396705672

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 163, 326, 489, 652, 978, 1304, 1956, 3912, 66919, 133838, 200757, 267676, 401514, 535352, 803028, 1606056, 10907797, 21815594, 32723391, 43631188, 65446782, 87262376, 130893564, 261787128]

約数ペア:

[(1, 261787128), (2, 130893564), (3, 87262376), (4, 65446782), (6, 43631188), (8, 32723391), (12, 21815594), (24, 10907797), (163, 1606056), (326, 803028), (489, 535352), (652, 401514), (978, 267676), (1304, 200757), (1956, 133838), (3912, 66919)]