20767656

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{257}}^1$

素因数の和:323

約数の個数: 128

約数和(自身を含む): 65882880

約数和(自身を除く): 45115224

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 21, 24, 26, 28, 37, 39, 42, 52, 56, 74, 78, 84, 91, 104, 111, 148, 156, 168, 182, 222, 257, 259, 273, 296, 312, 364, 444, 481, 514, 518, 546, 728, 771, 777, 888, 962, 1028, 1036, 1092, 1443, 1542, 1554, 1799, 1924, 2056, 2072, 2184, 2886, 3084, 3108, 3341, 3367, 3598, 3848, 5397, 5772, 6168, 6216, 6682, 6734, 7196, 9509, 10023, 10101, 10794, 11544, 13364, 13468, 14392, 19018, 20046, 20202, 21588, 23387, 26728, 26936, 28527, 38036, 40092, 40404, 43176, 46774, 57054, 66563, 70161, 76072, 80184, 80808, 93548, 114108, 123617, 133126, 140322, 187096, 199689, 228216, 247234, 266252, 280644, 370851, 399378, 494468, 532504, 561288, 741702, 798756, 865319, 988936, 1483404, 1597512, 1730638, 2595957, 2966808, 3461276, 5191914, 6922552, 10383828, 20767656]

約数ペア:

[(1, 20767656), (2, 10383828), (3, 6922552), (4, 5191914), (6, 3461276), (7, 2966808), (8, 2595957), (12, 1730638), (13, 1597512), (14, 1483404), (21, 988936), (24, 865319), (26, 798756), (28, 741702), (37, 561288), (39, 532504), (42, 494468), (52, 399378), (56, 370851), (74, 280644), (78, 266252), (84, 247234), (91, 228216), (104, 199689), (111, 187096), (148, 140322), (156, 133126), (168, 123617), (182, 114108), (222, 93548), (257, 80808), (259, 80184), (273, 76072), (296, 70161), (312, 66563), (364, 57054), (444, 46774), (481, 43176), (514, 40404), (518, 40092), (546, 38036), (728, 28527), (771, 26936), (777, 26728), (888, 23387), (962, 21588), (1028, 20202), (1036, 20046), (1092, 19018), (1443, 14392), (1542, 13468), (1554, 13364), (1799, 11544), (1924, 10794), (2056, 10101), (2072, 10023), (2184, 9509), (2886, 7196), (3084, 6734), (3108, 6682), (3341, 6216), (3367, 6168), (3598, 5772), (3848, 5397)]