81960968

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{249881}}^1$

素因数の和:249928

約数の個数: 16

約数和(自身を含む): 157425660

約数和(自身を除く): 75464692

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 249881, 499762, 999524, 1999048, 10245121, 20490242, 40980484, 81960968]

約数ペア:

[(1, 81960968), (2, 40980484), (4, 20490242), (8, 10245121), (41, 1999048), (82, 999524), (164, 499762), (328, 249881)]