2018001008

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{113}}^1\times {\mathrm{257}}^1$

素因数の和:522

約数の個数: 80

約数和(自身を含む): 4092032736

約数和(自身を除く): 2074031728

約数列:

[1, 2, 4, 8, 16, 43, 86, 101, 113, 172, 202, 226, 257, 344, 404, 452, 514, 688, 808, 904, 1028, 1616, 1808, 2056, 4112, 4343, 4859, 8686, 9718, 11051, 11413, 17372, 19436, 22102, 22826, 25957, 29041, 34744, 38872, 44204, 45652, 51914, 58082, 69488, 77744, 88408, 91304, 103828, 116164, 176816, 182608, 207656, 232328, 415312, 464656, 490759, 981518, 1116151, 1248763, 1963036, 2232302, 2497526, 2933141, 3926072, 4464604, 4995052, 5866282, 7852144, 8929208, 9990104, 11732564, 17858416, 19980208, 23465128, 46930256, 126125063, 252250126, 504500252, 1009000504, 2018001008]

約数ペア:

[(1, 2018001008), (2, 1009000504), (4, 504500252), (8, 252250126), (16, 126125063), (43, 46930256), (86, 23465128), (101, 19980208), (113, 17858416), (172, 11732564), (202, 9990104), (226, 8929208), (257, 7852144), (344, 5866282), (404, 4995052), (452, 4464604), (514, 3926072), (688, 2933141), (808, 2497526), (904, 2232302), (1028, 1963036), (1616, 1248763), (1808, 1116151), (2056, 981518), (4112, 490759), (4343, 464656), (4859, 415312), (8686, 232328), (9718, 207656), (11051, 182608), (11413, 176816), (17372, 116164), (19436, 103828), (22102, 91304), (22826, 88408), (25957, 77744), (29041, 69488), (34744, 58082), (38872, 51914), (44204, 45652)]