256207476

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{71}}^1$

素因数の和:147

約数の個数: 216

約数和(自身を含む): 788066496

約数和(自身を除く): 531859020

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 17, 19, 21, 28, 34, 38, 42, 49, 51, 57, 68, 71, 76, 84, 98, 102, 114, 119, 133, 142, 147, 196, 204, 213, 228, 238, 266, 284, 294, 323, 357, 361, 399, 426, 476, 497, 532, 588, 646, 714, 722, 798, 833, 852, 931, 969, 994, 1083, 1207, 1292, 1349, 1428, 1444, 1491, 1596, 1666, 1862, 1938, 1988, 2166, 2261, 2414, 2499, 2527, 2698, 2793, 2982, 3332, 3479, 3621, 3724, 3876, 4047, 4332, 4522, 4828, 4998, 5054, 5396, 5586, 5964, 6137, 6783, 6958, 7242, 7581, 8094, 8449, 9044, 9443, 9996, 10108, 10437, 11172, 12274, 13566, 13916, 14484, 15162, 15827, 16188, 16898, 17689, 18411, 18886, 20874, 22933, 24548, 25347, 25631, 27132, 28329, 30324, 31654, 33796, 35378, 36822, 37772, 41748, 42959, 45866, 47481, 50694, 51262, 53067, 56658, 59143, 63308, 66101, 68799, 70756, 73644, 76893, 85918, 91732, 94962, 101388, 102524, 106134, 113316, 118286, 128877, 132202, 137598, 153786, 160531, 171836, 177429, 179417, 189924, 198303, 212268, 236572, 257754, 264404, 275196, 300713, 307572, 321062, 354858, 358834, 396606, 435727, 481593, 515508, 538251, 601426, 642124, 709716, 717668, 793212, 871454, 902139, 963186, 1076502, 1123717, 1202852, 1255919, 1307181, 1742908, 1804278, 1926372, 2153004, 2247434, 2511838, 2614362, 3050089, 3371151, 3608556, 3767757, 4494868, 5023676, 5228724, 6100178, 6742302, 7535514, 9150267, 12200356, 13484604, 15071028, 18300534, 21350623, 36601068, 42701246, 64051869, 85402492, 128103738, 256207476]

約数ペア:

[(1, 256207476), (2, 128103738), (3, 85402492), (4, 64051869), (6, 42701246), (7, 36601068), (12, 21350623), (14, 18300534), (17, 15071028), (19, 13484604), (21, 12200356), (28, 9150267), (34, 7535514), (38, 6742302), (42, 6100178), (49, 5228724), (51, 5023676), (57, 4494868), (68, 3767757), (71, 3608556), (76, 3371151), (84, 3050089), (98, 2614362), (102, 2511838), (114, 2247434), (119, 2153004), (133, 1926372), (142, 1804278), (147, 1742908), (196, 1307181), (204, 1255919), (213, 1202852), (228, 1123717), (238, 1076502), (266, 963186), (284, 902139), (294, 871454), (323, 793212), (357, 717668), (361, 709716), (399, 642124), (426, 601426), (476, 538251), (497, 515508), (532, 481593), (588, 435727), (646, 396606), (714, 358834), (722, 354858), (798, 321062), (833, 307572), (852, 300713), (931, 275196), (969, 264404), (994, 257754), (1083, 236572), (1207, 212268), (1292, 198303), (1349, 189924), (1428, 179417), (1444, 177429), (1491, 171836), (1596, 160531), (1666, 153786), (1862, 137598), (1938, 132202), (1988, 128877), (2166, 118286), (2261, 113316), (2414, 106134), (2499, 102524), (2527, 101388), (2698, 94962), (2793, 91732), (2982, 85918), (3332, 76893), (3479, 73644), (3621, 70756), (3724, 68799), (3876, 66101), (4047, 63308), (4332, 59143), (4522, 56658), (4828, 53067), (4998, 51262), (5054, 50694), (5396, 47481), (5586, 45866), (5964, 42959), (6137, 41748), (6783, 37772), (6958, 36822), (7242, 35378), (7581, 33796), (8094, 31654), (8449, 30324), (9044, 28329), (9443, 27132), (9996, 25631), (10108, 25347), (10437, 24548), (11172, 22933), (12274, 20874), (13566, 18886), (13916, 18411), (14484, 17689), (15162, 16898), (15827, 16188)]