31939208

素因数分解:

$2^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{277}}^1$

素因数の和:390

約数の個数: 64

約数和(自身を含む): 72057600

約数和(自身を除く): 40118392

約数列:

[1, 2, 4, 7, 8, 14, 28, 29, 56, 58, 71, 116, 142, 203, 232, 277, 284, 406, 497, 554, 568, 812, 994, 1108, 1624, 1939, 1988, 2059, 2216, 3878, 3976, 4118, 7756, 8033, 8236, 14413, 15512, 16066, 16472, 19667, 28826, 32132, 39334, 56231, 57652, 64264, 78668, 112462, 115304, 137669, 157336, 224924, 275338, 449848, 550676, 570343, 1101352, 1140686, 2281372, 3992401, 4562744, 7984802, 15969604, 31939208]

約数ペア:

[(1, 31939208), (2, 15969604), (4, 7984802), (7, 4562744), (8, 3992401), (14, 2281372), (28, 1140686), (29, 1101352), (56, 570343), (58, 550676), (71, 449848), (116, 275338), (142, 224924), (203, 157336), (232, 137669), (277, 115304), (284, 112462), (406, 78668), (497, 64264), (554, 57652), (568, 56231), (812, 39334), (994, 32132), (1108, 28826), (1624, 19667), (1939, 16472), (1988, 16066), (2059, 15512), (2216, 14413), (3878, 8236), (3976, 8033), (4118, 7756)]