253891456

素因数分解:

$2^7\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{307}}^1$

素因数の和:412

約数の個数: 128

約数和(自身を含む): 633346560

約数和(自身を除く): 379455104

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 64, 71, 91, 104, 112, 128, 142, 182, 208, 224, 284, 307, 364, 416, 448, 497, 568, 614, 728, 832, 896, 923, 994, 1136, 1228, 1456, 1664, 1846, 1988, 2149, 2272, 2456, 2912, 3692, 3976, 3991, 4298, 4544, 4912, 5824, 6461, 7384, 7952, 7982, 8596, 9088, 9824, 11648, 12922, 14768, 15904, 15964, 17192, 19648, 21797, 25844, 27937, 29536, 31808, 31928, 34384, 39296, 43594, 51688, 55874, 59072, 63616, 63856, 68768, 87188, 103376, 111748, 118144, 127712, 137536, 152579, 174376, 206752, 223496, 255424, 275072, 283361, 305158, 348752, 413504, 446992, 510848, 566722, 610316, 697504, 827008, 893984, 1133444, 1220632, 1395008, 1787968, 1983527, 2266888, 2441264, 2790016, 3575936, 3967054, 4533776, 4882528, 7934108, 9067552, 9765056, 15868216, 18135104, 19530112, 31736432, 36270208, 63472864, 126945728, 253891456]

約数ペア:

[(1, 253891456), (2, 126945728), (4, 63472864), (7, 36270208), (8, 31736432), (13, 19530112), (14, 18135104), (16, 15868216), (26, 9765056), (28, 9067552), (32, 7934108), (52, 4882528), (56, 4533776), (64, 3967054), (71, 3575936), (91, 2790016), (104, 2441264), (112, 2266888), (128, 1983527), (142, 1787968), (182, 1395008), (208, 1220632), (224, 1133444), (284, 893984), (307, 827008), (364, 697504), (416, 610316), (448, 566722), (497, 510848), (568, 446992), (614, 413504), (728, 348752), (832, 305158), (896, 283361), (923, 275072), (994, 255424), (1136, 223496), (1228, 206752), (1456, 174376), (1664, 152579), (1846, 137536), (1988, 127712), (2149, 118144), (2272, 111748), (2456, 103376), (2912, 87188), (3692, 68768), (3976, 63856), (3991, 63616), (4298, 59072), (4544, 55874), (4912, 51688), (5824, 43594), (6461, 39296), (7384, 34384), (7952, 31928), (7982, 31808), (8596, 29536), (9088, 27937), (9824, 25844), (11648, 21797), (12922, 19648), (14768, 17192), (15904, 15964)]