20161638016

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{307}}^1\times {\mathrm{647}}^1$

素因数の和:1042

約数の個数: 128

約数和(自身を含む): 44175922560

約数和(自身を除く): 24014284544

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 61, 64, 104, 122, 128, 208, 244, 307, 416, 488, 614, 647, 793, 832, 976, 1228, 1294, 1586, 1664, 1952, 2456, 2588, 3172, 3904, 3991, 4912, 5176, 6344, 7808, 7982, 8411, 9824, 10352, 12688, 15964, 16822, 18727, 19648, 20704, 25376, 31928, 33644, 37454, 39296, 39467, 41408, 50752, 63856, 67288, 74908, 78934, 82816, 101504, 127712, 134576, 149816, 157868, 198629, 243451, 255424, 269152, 299632, 315736, 397258, 486902, 510848, 513071, 538304, 599264, 631472, 794516, 973804, 1026142, 1076608, 1198528, 1262944, 1589032, 1947608, 2052284, 2397056, 2525888, 2582177, 3178064, 3895216, 4104568, 5051776, 5164354, 6356128, 7790432, 8209136, 10328708, 12116369, 12712256, 15580864, 16418272, 20657416, 24232738, 25424512, 31161728, 32836544, 41314832, 48465476, 65673088, 82629664, 96930952, 157512797, 165259328, 193861904, 315025594, 330518656, 387723808, 630051188, 775447616, 1260102376, 1550895232, 2520204752, 5040409504, 10080819008, 20161638016]

約数ペア:

[(1, 20161638016), (2, 10080819008), (4, 5040409504), (8, 2520204752), (13, 1550895232), (16, 1260102376), (26, 775447616), (32, 630051188), (52, 387723808), (61, 330518656), (64, 315025594), (104, 193861904), (122, 165259328), (128, 157512797), (208, 96930952), (244, 82629664), (307, 65673088), (416, 48465476), (488, 41314832), (614, 32836544), (647, 31161728), (793, 25424512), (832, 24232738), (976, 20657416), (1228, 16418272), (1294, 15580864), (1586, 12712256), (1664, 12116369), (1952, 10328708), (2456, 8209136), (2588, 7790432), (3172, 6356128), (3904, 5164354), (3991, 5051776), (4912, 4104568), (5176, 3895216), (6344, 3178064), (7808, 2582177), (7982, 2525888), (8411, 2397056), (9824, 2052284), (10352, 1947608), (12688, 1589032), (15964, 1262944), (16822, 1198528), (18727, 1076608), (19648, 1026142), (20704, 973804), (25376, 794516), (31928, 631472), (33644, 599264), (37454, 538304), (39296, 513071), (39467, 510848), (41408, 486902), (50752, 397258), (63856, 315736), (67288, 299632), (74908, 269152), (78934, 255424), (82816, 243451), (101504, 198629), (127712, 157868), (134576, 149816)]