20292888

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1$

素因数の和:245

約数の個数: 128

約数和(自身を含む): 64512000

約数和(自身を除く): 44219112

約数列:

[1, 2, 3, 4, 6, 7, 8, 11, 12, 14, 21, 22, 24, 28, 33, 42, 44, 56, 66, 77, 79, 84, 88, 132, 139, 154, 158, 168, 231, 237, 264, 278, 308, 316, 417, 462, 474, 553, 556, 616, 632, 834, 869, 924, 948, 973, 1106, 1112, 1529, 1659, 1668, 1738, 1848, 1896, 1946, 2212, 2607, 2919, 3058, 3318, 3336, 3476, 3892, 4424, 4587, 5214, 5838, 6083, 6116, 6636, 6952, 7784, 9174, 10428, 10703, 10981, 11676, 12166, 12232, 13272, 18249, 18348, 20856, 21406, 21962, 23352, 24332, 32109, 32943, 36498, 36696, 42812, 43924, 48664, 64218, 65886, 72996, 76867, 85624, 87848, 120791, 128436, 131772, 145992, 153734, 230601, 241582, 256872, 263544, 307468, 362373, 461202, 483164, 614936, 724746, 845537, 922404, 966328, 1449492, 1691074, 1844808, 2536611, 2898984, 3382148, 5073222, 6764296, 10146444, 20292888]

約数ペア:

[(1, 20292888), (2, 10146444), (3, 6764296), (4, 5073222), (6, 3382148), (7, 2898984), (8, 2536611), (11, 1844808), (12, 1691074), (14, 1449492), (21, 966328), (22, 922404), (24, 845537), (28, 724746), (33, 614936), (42, 483164), (44, 461202), (56, 362373), (66, 307468), (77, 263544), (79, 256872), (84, 241582), (88, 230601), (132, 153734), (139, 145992), (154, 131772), (158, 128436), (168, 120791), (231, 87848), (237, 85624), (264, 76867), (278, 72996), (308, 65886), (316, 64218), (417, 48664), (462, 43924), (474, 42812), (553, 36696), (556, 36498), (616, 32943), (632, 32109), (834, 24332), (869, 23352), (924, 21962), (948, 21406), (973, 20856), (1106, 18348), (1112, 18249), (1529, 13272), (1659, 12232), (1668, 12166), (1738, 11676), (1848, 10981), (1896, 10703), (1946, 10428), (2212, 9174), (2607, 7784), (2919, 6952), (3058, 6636), (3318, 6116), (3336, 6083), (3476, 5838), (3892, 5214), (4424, 4587)]