28080976

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{991}}^1$

素因数の和:1040

約数の個数: 80

約数和(自身を含む): 70852608

約数和(自身を除く): 42771632

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 23, 28, 44, 46, 56, 77, 88, 92, 112, 154, 161, 176, 184, 253, 308, 322, 368, 506, 616, 644, 991, 1012, 1232, 1288, 1771, 1982, 2024, 2576, 3542, 3964, 4048, 6937, 7084, 7928, 10901, 13874, 14168, 15856, 21802, 22793, 27748, 28336, 43604, 45586, 55496, 76307, 87208, 91172, 110992, 152614, 159551, 174416, 182344, 250723, 305228, 319102, 364688, 501446, 610456, 638204, 1002892, 1220912, 1276408, 1755061, 2005784, 2552816, 3510122, 4011568, 7020244, 14040488, 28080976]

約数ペア:

[(1, 28080976), (2, 14040488), (4, 7020244), (7, 4011568), (8, 3510122), (11, 2552816), (14, 2005784), (16, 1755061), (22, 1276408), (23, 1220912), (28, 1002892), (44, 638204), (46, 610456), (56, 501446), (77, 364688), (88, 319102), (92, 305228), (112, 250723), (154, 182344), (161, 174416), (176, 159551), (184, 152614), (253, 110992), (308, 91172), (322, 87208), (368, 76307), (506, 55496), (616, 45586), (644, 43604), (991, 28336), (1012, 27748), (1232, 22793), (1288, 21802), (1771, 15856), (1982, 14168), (2024, 13874), (2576, 10901), (3542, 7928), (3964, 7084), (4048, 6937)]