81638872

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^2\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:153

約数の個数: 96

約数和(自身を含む): 190179360

約数和(自身を除く): 108540488

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 37, 41, 56, 62, 74, 82, 124, 148, 164, 217, 248, 259, 287, 296, 328, 434, 518, 574, 868, 961, 1036, 1147, 1148, 1271, 1517, 1736, 1922, 2072, 2294, 2296, 2542, 3034, 3844, 4588, 5084, 6068, 6727, 7688, 8029, 8897, 9176, 10168, 10619, 12136, 13454, 16058, 17794, 21238, 26908, 32116, 35557, 35588, 39401, 42476, 47027, 53816, 64232, 71114, 71176, 78802, 84952, 94054, 142228, 157604, 188108, 248899, 275807, 284456, 315208, 329189, 376216, 497798, 551614, 658378, 995596, 1103228, 1316756, 1457837, 1991192, 2206456, 2633512, 2915674, 5831348, 10204859, 11662696, 20409718, 40819436, 81638872]

約数ペア:

[(1, 81638872), (2, 40819436), (4, 20409718), (7, 11662696), (8, 10204859), (14, 5831348), (28, 2915674), (31, 2633512), (37, 2206456), (41, 1991192), (56, 1457837), (62, 1316756), (74, 1103228), (82, 995596), (124, 658378), (148, 551614), (164, 497798), (217, 376216), (248, 329189), (259, 315208), (287, 284456), (296, 275807), (328, 248899), (434, 188108), (518, 157604), (574, 142228), (868, 94054), (961, 84952), (1036, 78802), (1147, 71176), (1148, 71114), (1271, 64232), (1517, 53816), (1736, 47027), (1922, 42476), (2072, 39401), (2294, 35588), (2296, 35557), (2542, 32116), (3034, 26908), (3844, 21238), (4588, 17794), (5084, 16058), (6068, 13454), (6727, 12136), (7688, 10619), (8029, 10168), (8897, 9176)]