20256166

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{271}}^1\times {\mathrm{281}}^1$

素因数の和:580

約数の個数: 32

約数和(自身を含む): 36817920

約数和(自身を除く): 16561754

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 271, 281, 542, 562, 1897, 1967, 3794, 3934, 5149, 5339, 10298, 10678, 36043, 37373, 72086, 74746, 76151, 152302, 533057, 1066114, 1446869, 2893738, 10128083, 20256166]

約数ペア:

[(1, 20256166), (2, 10128083), (7, 2893738), (14, 1446869), (19, 1066114), (38, 533057), (133, 152302), (266, 76151), (271, 74746), (281, 72086), (542, 37373), (562, 36043), (1897, 10678), (1967, 10298), (3794, 5339), (3934, 5149)]