28700826

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1$

素因数の和:156

約数の個数: 128

約数和(自身を含む): 77746176

約数和(自身を除く): 49045350

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 23, 33, 37, 42, 46, 66, 69, 73, 74, 77, 111, 138, 146, 154, 161, 219, 222, 231, 253, 259, 322, 407, 438, 462, 483, 506, 511, 518, 759, 777, 803, 814, 851, 966, 1022, 1221, 1518, 1533, 1554, 1606, 1679, 1702, 1771, 2409, 2442, 2553, 2701, 2849, 3066, 3358, 3542, 4818, 5037, 5106, 5313, 5402, 5621, 5698, 5957, 8103, 8547, 9361, 10074, 10626, 11242, 11753, 11914, 16206, 16863, 17094, 17871, 18469, 18722, 18907, 23506, 28083, 29711, 33726, 35259, 35742, 36938, 37814, 55407, 56166, 56721, 59422, 62123, 65527, 70518, 89133, 110814, 113442, 124246, 129283, 131054, 178266, 186369, 196581, 207977, 258566, 372738, 387849, 393162, 415954, 434861, 623931, 683353, 775698, 869722, 1247862, 1304583, 1366706, 2050059, 2609166, 4100118, 4783471, 9566942, 14350413, 28700826]

約数ペア:

[(1, 28700826), (2, 14350413), (3, 9566942), (6, 4783471), (7, 4100118), (11, 2609166), (14, 2050059), (21, 1366706), (22, 1304583), (23, 1247862), (33, 869722), (37, 775698), (42, 683353), (46, 623931), (66, 434861), (69, 415954), (73, 393162), (74, 387849), (77, 372738), (111, 258566), (138, 207977), (146, 196581), (154, 186369), (161, 178266), (219, 131054), (222, 129283), (231, 124246), (253, 113442), (259, 110814), (322, 89133), (407, 70518), (438, 65527), (462, 62123), (483, 59422), (506, 56721), (511, 56166), (518, 55407), (759, 37814), (777, 36938), (803, 35742), (814, 35259), (851, 33726), (966, 29711), (1022, 28083), (1221, 23506), (1518, 18907), (1533, 18722), (1554, 18469), (1606, 17871), (1679, 17094), (1702, 16863), (1771, 16206), (2409, 11914), (2442, 11753), (2553, 11242), (2701, 10626), (2849, 10074), (3066, 9361), (3358, 8547), (3542, 8103), (4818, 5957), (5037, 5698), (5106, 5621), (5313, 5402)]