248123456

素因数分解:

$2^6\times 7^3\times {\mathrm{89}}^1\times {\mathrm{127}}^1$

素因数の和:249

約数の個数: 112

約数和(自身を含む): 585216000

約数和(自身を除く): 337092544

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 89, 98, 112, 127, 178, 196, 224, 254, 343, 356, 392, 448, 508, 623, 686, 712, 784, 889, 1016, 1246, 1372, 1424, 1568, 1778, 2032, 2492, 2744, 2848, 3136, 3556, 4064, 4361, 4984, 5488, 5696, 6223, 7112, 8128, 8722, 9968, 10976, 11303, 12446, 14224, 17444, 19936, 21952, 22606, 24892, 28448, 30527, 34888, 39872, 43561, 45212, 49784, 56896, 61054, 69776, 79121, 87122, 90424, 99568, 122108, 139552, 158242, 174244, 180848, 199136, 244216, 279104, 316484, 348488, 361696, 398272, 488432, 553847, 632968, 696976, 723392, 976864, 1107694, 1265936, 1393952, 1953728, 2215388, 2531872, 2787904, 3876929, 4430776, 5063744, 7753858, 8861552, 15507716, 17723104, 31015432, 35446208, 62030864, 124061728, 248123456]

約数ペア:

[(1, 248123456), (2, 124061728), (4, 62030864), (7, 35446208), (8, 31015432), (14, 17723104), (16, 15507716), (28, 8861552), (32, 7753858), (49, 5063744), (56, 4430776), (64, 3876929), (89, 2787904), (98, 2531872), (112, 2215388), (127, 1953728), (178, 1393952), (196, 1265936), (224, 1107694), (254, 976864), (343, 723392), (356, 696976), (392, 632968), (448, 553847), (508, 488432), (623, 398272), (686, 361696), (712, 348488), (784, 316484), (889, 279104), (1016, 244216), (1246, 199136), (1372, 180848), (1424, 174244), (1568, 158242), (1778, 139552), (2032, 122108), (2492, 99568), (2744, 90424), (2848, 87122), (3136, 79121), (3556, 69776), (4064, 61054), (4361, 56896), (4984, 49784), (5488, 45212), (5696, 43561), (6223, 39872), (7112, 34888), (8128, 30527), (8722, 28448), (9968, 24892), (10976, 22606), (11303, 21952), (12446, 19936), (14224, 17444)]