20778820172

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{500791}}^1$

素因数の和:500870

約数の個数: 48

約数和(自身を含む): 42403060224

約数和(自身を除く): 21624240052

約数列:

[1, 2, 4, 11, 22, 23, 41, 44, 46, 82, 92, 164, 253, 451, 506, 902, 943, 1012, 1804, 1886, 3772, 10373, 20746, 41492, 500791, 1001582, 2003164, 5508701, 11017402, 11518193, 20532431, 22034804, 23036386, 41064862, 46072772, 82129724, 126700123, 225856741, 253400246, 451713482, 472245913, 506800492, 903426964, 944491826, 1888983652, 5194705043, 10389410086, 20778820172]

約数ペア:

[(1, 20778820172), (2, 10389410086), (4, 5194705043), (11, 1888983652), (22, 944491826), (23, 903426964), (41, 506800492), (44, 472245913), (46, 451713482), (82, 253400246), (92, 225856741), (164, 126700123), (253, 82129724), (451, 46072772), (506, 41064862), (902, 23036386), (943, 22034804), (1012, 20532431), (1804, 11518193), (1886, 11017402), (3772, 5508701), (10373, 2003164), (20746, 1001582), (41492, 500791)]