20037776

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{443}}^1$

素因数の和:719

約数の個数: 40

約数和(自身を含む): 42613344

約数和(自身を除く): 22575568

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 257, 443, 514, 886, 1028, 1772, 2056, 2827, 3544, 4112, 4873, 5654, 7088, 9746, 11308, 19492, 22616, 38984, 45232, 77968, 113851, 227702, 455404, 910808, 1252361, 1821616, 2504722, 5009444, 10018888, 20037776]

約数ペア:

[(1, 20037776), (2, 10018888), (4, 5009444), (8, 2504722), (11, 1821616), (16, 1252361), (22, 910808), (44, 455404), (88, 227702), (176, 113851), (257, 77968), (443, 45232), (514, 38984), (886, 22616), (1028, 19492), (1772, 11308), (2056, 9746), (2827, 7088), (3544, 5654), (4112, 4873)]