81678416

素因数分解:

$2^4\times {\mathrm{19}}^2\times {\mathrm{79}}^1\times {\mathrm{179}}^1$

素因数の和:304

約数の個数: 60

約数和(自身を含む): 170078400

約数和(自身を除く): 88399984

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 79, 152, 158, 179, 304, 316, 358, 361, 632, 716, 722, 1264, 1432, 1444, 1501, 2864, 2888, 3002, 3401, 5776, 6004, 6802, 12008, 13604, 14141, 24016, 27208, 28282, 28519, 54416, 56564, 57038, 64619, 113128, 114076, 129238, 226256, 228152, 258476, 268679, 456304, 516952, 537358, 1033904, 1074716, 2149432, 4298864, 5104901, 10209802, 20419604, 40839208, 81678416]

約数ペア:

[(1, 81678416), (2, 40839208), (4, 20419604), (8, 10209802), (16, 5104901), (19, 4298864), (38, 2149432), (76, 1074716), (79, 1033904), (152, 537358), (158, 516952), (179, 456304), (304, 268679), (316, 258476), (358, 228152), (361, 226256), (632, 129238), (716, 114076), (722, 113128), (1264, 64619), (1432, 57038), (1444, 56564), (1501, 54416), (2864, 28519), (2888, 28282), (3002, 27208), (3401, 24016), (5776, 14141), (6004, 13604), (6802, 12008)]