390785976

素因数分解:

$2^3\times 3^2\times 7^2\times {\mathrm{257}}^1\times {\mathrm{431}}^1$

素因数の和:714

約数の個数: 144

約数和(自身を含む): 1238833440

約数和(自身を除く): 848047464

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 49, 56, 63, 72, 84, 98, 126, 147, 168, 196, 252, 257, 294, 392, 431, 441, 504, 514, 588, 771, 862, 882, 1028, 1176, 1293, 1542, 1724, 1764, 1799, 2056, 2313, 2586, 3017, 3084, 3448, 3528, 3598, 3879, 4626, 5172, 5397, 6034, 6168, 7196, 7758, 9051, 9252, 10344, 10794, 12068, 12593, 14392, 15516, 16191, 18102, 18504, 21119, 21588, 24136, 25186, 27153, 31032, 32382, 36204, 37779, 42238, 43176, 50372, 54306, 63357, 64764, 72408, 75558, 84476, 100744, 108612, 110767, 113337, 126714, 129528, 151116, 168952, 190071, 217224, 221534, 226674, 253428, 302232, 332301, 380142, 443068, 453348, 506856, 664602, 760284, 775369, 886136, 906696, 996903, 1329204, 1520568, 1550738, 1993806, 2326107, 2658408, 3101476, 3987612, 4652214, 5427583, 6202952, 6978321, 7975224, 9304428, 10855166, 13956642, 16282749, 18608856, 21710332, 27913284, 32565498, 43420664, 48848247, 55826568, 65130996, 97696494, 130261992, 195392988, 390785976]

約数ペア:

[(1, 390785976), (2, 195392988), (3, 130261992), (4, 97696494), (6, 65130996), (7, 55826568), (8, 48848247), (9, 43420664), (12, 32565498), (14, 27913284), (18, 21710332), (21, 18608856), (24, 16282749), (28, 13956642), (36, 10855166), (42, 9304428), (49, 7975224), (56, 6978321), (63, 6202952), (72, 5427583), (84, 4652214), (98, 3987612), (126, 3101476), (147, 2658408), (168, 2326107), (196, 1993806), (252, 1550738), (257, 1520568), (294, 1329204), (392, 996903), (431, 906696), (441, 886136), (504, 775369), (514, 760284), (588, 664602), (771, 506856), (862, 453348), (882, 443068), (1028, 380142), (1176, 332301), (1293, 302232), (1542, 253428), (1724, 226674), (1764, 221534), (1799, 217224), (2056, 190071), (2313, 168952), (2586, 151116), (3017, 129528), (3084, 126714), (3448, 113337), (3528, 110767), (3598, 108612), (3879, 100744), (4626, 84476), (5172, 75558), (5397, 72408), (6034, 64764), (6168, 63357), (7196, 54306), (7758, 50372), (9051, 43176), (9252, 42238), (10344, 37779), (10794, 36204), (12068, 32382), (12593, 31032), (14392, 27153), (15516, 25186), (16191, 24136), (18102, 21588), (18504, 21119)]