28128408

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{491}}^1$

素因数の和:549

約数の個数: 128

約数和(自身を含む): 90685440

約数和(自身を除く): 62557032

約数列:

[1, 2, 3, 4, 6, 7, 8, 11, 12, 14, 21, 22, 24, 28, 31, 33, 42, 44, 56, 62, 66, 77, 84, 88, 93, 124, 132, 154, 168, 186, 217, 231, 248, 264, 308, 341, 372, 434, 462, 491, 616, 651, 682, 744, 868, 924, 982, 1023, 1302, 1364, 1473, 1736, 1848, 1964, 2046, 2387, 2604, 2728, 2946, 3437, 3928, 4092, 4774, 5208, 5401, 5892, 6874, 7161, 8184, 9548, 10311, 10802, 11784, 13748, 14322, 15221, 16203, 19096, 20622, 21604, 27496, 28644, 30442, 32406, 37807, 41244, 43208, 45663, 57288, 60884, 64812, 75614, 82488, 91326, 106547, 113421, 121768, 129624, 151228, 167431, 182652, 213094, 226842, 302456, 319641, 334862, 365304, 426188, 453684, 502293, 639282, 669724, 852376, 907368, 1004586, 1172017, 1278564, 1339448, 2009172, 2344034, 2557128, 3516051, 4018344, 4688068, 7032102, 9376136, 14064204, 28128408]

約数ペア:

[(1, 28128408), (2, 14064204), (3, 9376136), (4, 7032102), (6, 4688068), (7, 4018344), (8, 3516051), (11, 2557128), (12, 2344034), (14, 2009172), (21, 1339448), (22, 1278564), (24, 1172017), (28, 1004586), (31, 907368), (33, 852376), (42, 669724), (44, 639282), (56, 502293), (62, 453684), (66, 426188), (77, 365304), (84, 334862), (88, 319641), (93, 302456), (124, 226842), (132, 213094), (154, 182652), (168, 167431), (186, 151228), (217, 129624), (231, 121768), (248, 113421), (264, 106547), (308, 91326), (341, 82488), (372, 75614), (434, 64812), (462, 60884), (491, 57288), (616, 45663), (651, 43208), (682, 41244), (744, 37807), (868, 32406), (924, 30442), (982, 28644), (1023, 27496), (1302, 21604), (1364, 20622), (1473, 19096), (1736, 16203), (1848, 15221), (1964, 14322), (2046, 13748), (2387, 11784), (2604, 10802), (2728, 10311), (2946, 9548), (3437, 8184), (3928, 7161), (4092, 6874), (4774, 5892), (5208, 5401)]