20766256

素因数分解:

$2^4\times 7^1\times {\mathrm{79}}^1\times {\mathrm{2347}}^1$

素因数の和:2441

約数の個数: 40

約数和(自身を含む): 46584320

約数和(自身を除く): 25818064

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 79, 112, 158, 316, 553, 632, 1106, 1264, 2212, 2347, 4424, 4694, 8848, 9388, 16429, 18776, 32858, 37552, 65716, 131432, 185413, 262864, 370826, 741652, 1297891, 1483304, 2595782, 2966608, 5191564, 10383128, 20766256]

約数ペア:

[(1, 20766256), (2, 10383128), (4, 5191564), (7, 2966608), (8, 2595782), (14, 1483304), (16, 1297891), (28, 741652), (56, 370826), (79, 262864), (112, 185413), (158, 131432), (316, 65716), (553, 37552), (632, 32858), (1106, 18776), (1264, 16429), (2212, 9388), (2347, 8848), (4424, 4694)]