20408959648

素因数分解:

$2^5\times 7^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{433}}^1$

素因数の和:556

約数の個数: 288

約数和(自身を含む): 53063603712

約数和(自身を除く): 32654644064

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 37, 44, 47, 56, 74, 77, 88, 94, 112, 121, 148, 154, 176, 188, 224, 242, 259, 296, 308, 329, 352, 376, 407, 433, 484, 517, 518, 592, 616, 658, 752, 814, 847, 866, 968, 1034, 1036, 1184, 1232, 1316, 1504, 1628, 1694, 1732, 1739, 1936, 2068, 2072, 2464, 2632, 2849, 3031, 3256, 3388, 3464, 3478, 3619, 3872, 4136, 4144, 4477, 4763, 5264, 5687, 5698, 6062, 6512, 6776, 6928, 6956, 7238, 8272, 8288, 8954, 9526, 10528, 11374, 11396, 12124, 12173, 13024, 13552, 13856, 13912, 14476, 16021, 16544, 17908, 19052, 19129, 20351, 22748, 22792, 24248, 24346, 27104, 27824, 28952, 31339, 32042, 33341, 35816, 38104, 38258, 39809, 40702, 45496, 45584, 48496, 48692, 52393, 55648, 57904, 62678, 64084, 66682, 71632, 76208, 76516, 79618, 81404, 90992, 91168, 96992, 97384, 104786, 112147, 115808, 125356, 128168, 133364, 133903, 142457, 143264, 152416, 153032, 159236, 162808, 176231, 181984, 194768, 209572, 210419, 223861, 224294, 250712, 256336, 266728, 267806, 284914, 306064, 318472, 325616, 352462, 366751, 389536, 419144, 420838, 447722, 448588, 501424, 512672, 533456, 535612, 569828, 612128, 636944, 651232, 704924, 733502, 752987, 838288, 841676, 895444, 897176, 1002848, 1066912, 1071224, 1139656, 1233617, 1273888, 1409848, 1467004, 1472933, 1505974, 1567027, 1676576, 1683352, 1790888, 1794352, 1938541, 2142448, 2279312, 2462471, 2467234, 2819696, 2934008, 2945866, 3011948, 3134054, 3366704, 3581776, 3588704, 3877082, 4284896, 4558624, 4924942, 4934468, 5270909, 5639392, 5868016, 5891732, 6023896, 6268108, 6733408, 7163552, 7754164, 8282857, 9849884, 9868936, 10541818, 11736032, 11783464, 12047792, 12536216, 13569787, 15508328, 16565714, 17237297, 19699768, 19737872, 21083636, 23566928, 24095584, 25072432, 27139574, 31016656, 33131428, 34474594, 39399536, 39475744, 42167272, 47133856, 50144864, 54279148, 57979999, 62033312, 66262856, 68949188, 78799072, 84334544, 91111427, 108558296, 115959998, 132525712, 137898376, 168669088, 182222854, 217116592, 231919996, 265051424, 275796752, 364445708, 434233184, 463839992, 551593504, 637779989, 728891416, 927679984, 1275559978, 1457782832, 1855359968, 2551119956, 2915565664, 5102239912, 10204479824, 20408959648]

約数ペア:

[(1, 20408959648), (2, 10204479824), (4, 5102239912), (7, 2915565664), (8, 2551119956), (11, 1855359968), (14, 1457782832), (16, 1275559978), (22, 927679984), (28, 728891416), (32, 637779989), (37, 551593504), (44, 463839992), (47, 434233184), (56, 364445708), (74, 275796752), (77, 265051424), (88, 231919996), (94, 217116592), (112, 182222854), (121, 168669088), (148, 137898376), (154, 132525712), (176, 115959998), (188, 108558296), (224, 91111427), (242, 84334544), (259, 78799072), (296, 68949188), (308, 66262856), (329, 62033312), (352, 57979999), (376, 54279148), (407, 50144864), (433, 47133856), (484, 42167272), (517, 39475744), (518, 39399536), (592, 34474594), (616, 33131428), (658, 31016656), (752, 27139574), (814, 25072432), (847, 24095584), (866, 23566928), (968, 21083636), (1034, 19737872), (1036, 19699768), (1184, 17237297), (1232, 16565714), (1316, 15508328), (1504, 13569787), (1628, 12536216), (1694, 12047792), (1732, 11783464), (1739, 11736032), (1936, 10541818), (2068, 9868936), (2072, 9849884), (2464, 8282857), (2632, 7754164), (2849, 7163552), (3031, 6733408), (3256, 6268108), (3388, 6023896), (3464, 5891732), (3478, 5868016), (3619, 5639392), (3872, 5270909), (4136, 4934468), (4144, 4924942), (4477, 4558624), (4763, 4284896), (5264, 3877082), (5687, 3588704), (5698, 3581776), (6062, 3366704), (6512, 3134054), (6776, 3011948), (6928, 2945866), (6956, 2934008), (7238, 2819696), (8272, 2467234), (8288, 2462471), (8954, 2279312), (9526, 2142448), (10528, 1938541), (11374, 1794352), (11396, 1790888), (12124, 1683352), (12173, 1676576), (13024, 1567027), (13552, 1505974), (13856, 1472933), (13912, 1467004), (14476, 1409848), (16021, 1273888), (16544, 1233617), (17908, 1139656), (19052, 1071224), (19129, 1066912), (20351, 1002848), (22748, 897176), (22792, 895444), (24248, 841676), (24346, 838288), (27104, 752987), (27824, 733502), (28952, 704924), (31339, 651232), (32042, 636944), (33341, 612128), (35816, 569828), (38104, 535612), (38258, 533456), (39809, 512672), (40702, 501424), (45496, 448588), (45584, 447722), (48496, 420838), (48692, 419144), (52393, 389536), (55648, 366751), (57904, 352462), (62678, 325616), (64084, 318472), (66682, 306064), (71632, 284914), (76208, 267806), (76516, 266728), (79618, 256336), (81404, 250712), (90992, 224294), (91168, 223861), (96992, 210419), (97384, 209572), (104786, 194768), (112147, 181984), (115808, 176231), (125356, 162808), (128168, 159236), (133364, 153032), (133903, 152416), (142457, 143264)]