28828016

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1$

素因数の和:107

約数の個数: 120

約数和(自身を含む): 72566784

約数和(自身を除く): 43738768

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 23, 28, 31, 38, 46, 56, 62, 76, 92, 112, 124, 133, 152, 161, 184, 217, 248, 266, 304, 322, 361, 368, 434, 437, 496, 532, 589, 644, 713, 722, 868, 874, 1064, 1178, 1288, 1426, 1444, 1736, 1748, 2128, 2356, 2527, 2576, 2852, 2888, 3059, 3472, 3496, 4123, 4712, 4991, 5054, 5704, 5776, 6118, 6992, 8246, 8303, 9424, 9982, 10108, 11191, 11408, 12236, 13547, 16492, 16606, 19964, 20216, 22382, 24472, 27094, 32984, 33212, 39928, 40432, 44764, 48944, 54188, 58121, 65968, 66424, 78337, 79856, 89528, 94829, 108376, 116242, 132848, 156674, 179056, 189658, 216752, 232484, 257393, 313348, 379316, 464968, 514786, 626696, 758632, 929936, 1029572, 1253392, 1517264, 1801751, 2059144, 3603502, 4118288, 7207004, 14414008, 28828016]

約数ペア:

[(1, 28828016), (2, 14414008), (4, 7207004), (7, 4118288), (8, 3603502), (14, 2059144), (16, 1801751), (19, 1517264), (23, 1253392), (28, 1029572), (31, 929936), (38, 758632), (46, 626696), (56, 514786), (62, 464968), (76, 379316), (92, 313348), (112, 257393), (124, 232484), (133, 216752), (152, 189658), (161, 179056), (184, 156674), (217, 132848), (248, 116242), (266, 108376), (304, 94829), (322, 89528), (361, 79856), (368, 78337), (434, 66424), (437, 65968), (496, 58121), (532, 54188), (589, 48944), (644, 44764), (713, 40432), (722, 39928), (868, 33212), (874, 32984), (1064, 27094), (1178, 24472), (1288, 22382), (1426, 20216), (1444, 19964), (1736, 16606), (1748, 16492), (2128, 13547), (2356, 12236), (2527, 11408), (2576, 11191), (2852, 10108), (2888, 9982), (3059, 9424), (3472, 8303), (3496, 8246), (4123, 6992), (4712, 6118), (4991, 5776), (5054, 5704)]