28430388

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{71}}^1\times {\mathrm{227}}^1$

素因数の和:322

約数の個数: 108

約数和(自身を含む): 85149792

約数和(自身を除く): 56719404

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 49, 63, 71, 84, 98, 126, 142, 147, 196, 213, 227, 252, 284, 294, 426, 441, 454, 497, 588, 639, 681, 852, 882, 908, 994, 1278, 1362, 1491, 1589, 1764, 1988, 2043, 2556, 2724, 2982, 3178, 3479, 4086, 4473, 4767, 5964, 6356, 6958, 8172, 8946, 9534, 10437, 11123, 13916, 14301, 16117, 17892, 19068, 20874, 22246, 28602, 31311, 32234, 33369, 41748, 44492, 48351, 57204, 62622, 64468, 66738, 96702, 100107, 112819, 125244, 133476, 145053, 193404, 200214, 225638, 290106, 338457, 400428, 451276, 580212, 676914, 789733, 1015371, 1353828, 1579466, 2030742, 2369199, 3158932, 4061484, 4738398, 7107597, 9476796, 14215194, 28430388]

約数ペア:

[(1, 28430388), (2, 14215194), (3, 9476796), (4, 7107597), (6, 4738398), (7, 4061484), (9, 3158932), (12, 2369199), (14, 2030742), (18, 1579466), (21, 1353828), (28, 1015371), (36, 789733), (42, 676914), (49, 580212), (63, 451276), (71, 400428), (84, 338457), (98, 290106), (126, 225638), (142, 200214), (147, 193404), (196, 145053), (213, 133476), (227, 125244), (252, 112819), (284, 100107), (294, 96702), (426, 66738), (441, 64468), (454, 62622), (497, 57204), (588, 48351), (639, 44492), (681, 41748), (852, 33369), (882, 32234), (908, 31311), (994, 28602), (1278, 22246), (1362, 20874), (1491, 19068), (1589, 17892), (1764, 16117), (1988, 14301), (2043, 13916), (2556, 11123), (2724, 10437), (2982, 9534), (3178, 8946), (3479, 8172), (4086, 6958), (4473, 6356), (4767, 5964)]