28005588

素因数分解:

$2^2\times 3^4\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1$

素因数の和:199

約数の個数: 120

約数和(自身を含む): 80871560

約数和(自身を除く): 52865972

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 61, 78, 81, 108, 109, 117, 122, 156, 162, 183, 218, 234, 244, 324, 327, 351, 366, 436, 468, 549, 654, 702, 732, 793, 981, 1053, 1098, 1308, 1404, 1417, 1586, 1647, 1962, 2106, 2196, 2379, 2834, 2943, 3172, 3294, 3924, 4212, 4251, 4758, 4941, 5668, 5886, 6588, 6649, 7137, 8502, 8829, 9516, 9882, 11772, 12753, 13298, 14274, 17004, 17658, 19764, 19947, 21411, 25506, 26596, 28548, 35316, 38259, 39894, 42822, 51012, 59841, 64233, 76518, 79788, 85644, 86437, 114777, 119682, 128466, 153036, 172874, 179523, 229554, 239364, 256932, 259311, 345748, 359046, 459108, 518622, 538569, 718092, 777933, 1037244, 1077138, 1555866, 2154276, 2333799, 3111732, 4667598, 7001397, 9335196, 14002794, 28005588]

約数ペア:

[(1, 28005588), (2, 14002794), (3, 9335196), (4, 7001397), (6, 4667598), (9, 3111732), (12, 2333799), (13, 2154276), (18, 1555866), (26, 1077138), (27, 1037244), (36, 777933), (39, 718092), (52, 538569), (54, 518622), (61, 459108), (78, 359046), (81, 345748), (108, 259311), (109, 256932), (117, 239364), (122, 229554), (156, 179523), (162, 172874), (183, 153036), (218, 128466), (234, 119682), (244, 114777), (324, 86437), (327, 85644), (351, 79788), (366, 76518), (436, 64233), (468, 59841), (549, 51012), (654, 42822), (702, 39894), (732, 38259), (793, 35316), (981, 28548), (1053, 26596), (1098, 25506), (1308, 21411), (1404, 19947), (1417, 19764), (1586, 17658), (1647, 17004), (1962, 14274), (2106, 13298), (2196, 12753), (2379, 11772), (2834, 9882), (2943, 9516), (3172, 8829), (3294, 8502), (3924, 7137), (4212, 6649), (4251, 6588), (4758, 5886), (4941, 5668)]