81205852

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{131}}^2$

素因数の和:299

約数の個数: 54

約数和(自身を含む): 177218664

約数和(自身を除く): 96012812

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 131, 169, 182, 262, 338, 364, 524, 676, 917, 1183, 1703, 1834, 2366, 3406, 3668, 4732, 6812, 11921, 17161, 22139, 23842, 34322, 44278, 47684, 68644, 88556, 120127, 154973, 223093, 240254, 309946, 446186, 480508, 619892, 892372, 1561651, 2900209, 3123302, 5800418, 6246604, 11600836, 20301463, 40602926, 81205852]

約数ペア:

[(1, 81205852), (2, 40602926), (4, 20301463), (7, 11600836), (13, 6246604), (14, 5800418), (26, 3123302), (28, 2900209), (52, 1561651), (91, 892372), (131, 619892), (169, 480508), (182, 446186), (262, 309946), (338, 240254), (364, 223093), (524, 154973), (676, 120127), (917, 88556), (1183, 68644), (1703, 47684), (1834, 44278), (2366, 34322), (3406, 23842), (3668, 22139), (4732, 17161), (6812, 11921)]