256681488

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1297}}^1$

素因数の和:1365

約数の個数: 160

約数和(自身を含む): 824074240

約数和(自身を除く): 567392752

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 19, 21, 24, 28, 31, 38, 42, 48, 56, 57, 62, 76, 84, 93, 112, 114, 124, 133, 152, 168, 186, 217, 228, 248, 266, 304, 336, 372, 399, 434, 456, 496, 532, 589, 651, 744, 798, 868, 912, 1064, 1178, 1297, 1302, 1488, 1596, 1736, 1767, 2128, 2356, 2594, 2604, 3192, 3472, 3534, 3891, 4123, 4712, 5188, 5208, 6384, 7068, 7782, 8246, 9079, 9424, 10376, 10416, 12369, 14136, 15564, 16492, 18158, 20752, 24643, 24738, 27237, 28272, 31128, 32984, 36316, 40207, 49286, 49476, 54474, 62256, 65968, 72632, 73929, 80414, 98572, 98952, 108948, 120621, 145264, 147858, 160828, 172501, 197144, 197904, 217896, 241242, 281449, 295716, 321656, 345002, 394288, 435792, 482484, 517503, 562898, 591432, 643312, 690004, 763933, 844347, 964968, 1035006, 1125796, 1182864, 1380008, 1527866, 1688694, 1929936, 2070012, 2251592, 2291799, 2760016, 3055732, 3377388, 4140024, 4503184, 4583598, 5347531, 6111464, 6754776, 8280048, 9167196, 10695062, 12222928, 13509552, 16042593, 18334392, 21390124, 32085186, 36668784, 42780248, 64170372, 85560496, 128340744, 256681488]

約数ペア:

[(1, 256681488), (2, 128340744), (3, 85560496), (4, 64170372), (6, 42780248), (7, 36668784), (8, 32085186), (12, 21390124), (14, 18334392), (16, 16042593), (19, 13509552), (21, 12222928), (24, 10695062), (28, 9167196), (31, 8280048), (38, 6754776), (42, 6111464), (48, 5347531), (56, 4583598), (57, 4503184), (62, 4140024), (76, 3377388), (84, 3055732), (93, 2760016), (112, 2291799), (114, 2251592), (124, 2070012), (133, 1929936), (152, 1688694), (168, 1527866), (186, 1380008), (217, 1182864), (228, 1125796), (248, 1035006), (266, 964968), (304, 844347), (336, 763933), (372, 690004), (399, 643312), (434, 591432), (456, 562898), (496, 517503), (532, 482484), (589, 435792), (651, 394288), (744, 345002), (798, 321656), (868, 295716), (912, 281449), (1064, 241242), (1178, 217896), (1297, 197904), (1302, 197144), (1488, 172501), (1596, 160828), (1736, 147858), (1767, 145264), (2128, 120621), (2356, 108948), (2594, 98952), (2604, 98572), (3192, 80414), (3472, 73929), (3534, 72632), (3891, 65968), (4123, 62256), (4712, 54474), (5188, 49476), (5208, 49286), (6384, 40207), (7068, 36316), (7782, 32984), (8246, 31128), (9079, 28272), (9424, 27237), (10376, 24738), (10416, 24643), (12369, 20752), (14136, 18158), (15564, 16492)]