256443408

素因数分解:

$2^4\times 3^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{491}}^1$

素因数の和:555

約数の個数: 200

約数和(自身を含む): 826780416

約数和(自身を除く): 570337008

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 27, 31, 36, 39, 48, 52, 54, 62, 72, 78, 81, 93, 104, 108, 117, 124, 144, 156, 162, 186, 208, 216, 234, 248, 279, 312, 324, 351, 372, 403, 432, 468, 491, 496, 558, 624, 648, 702, 744, 806, 837, 936, 982, 1053, 1116, 1209, 1296, 1404, 1473, 1488, 1612, 1674, 1872, 1964, 2106, 2232, 2418, 2511, 2808, 2946, 3224, 3348, 3627, 3928, 4212, 4419, 4464, 4836, 5022, 5616, 5892, 6383, 6448, 6696, 7254, 7856, 8424, 8838, 9672, 10044, 10881, 11784, 12766, 13257, 13392, 14508, 15221, 16848, 17676, 19149, 19344, 20088, 21762, 23568, 25532, 26514, 29016, 30442, 32643, 35352, 38298, 39771, 40176, 43524, 45663, 51064, 53028, 57447, 58032, 60884, 65286, 70704, 76596, 79542, 87048, 91326, 102128, 106056, 114894, 121768, 130572, 136989, 153192, 159084, 172341, 174096, 182652, 197873, 212112, 229788, 243536, 261144, 273978, 306384, 318168, 344682, 365304, 395746, 410967, 459576, 517023, 522288, 547956, 593619, 636336, 689364, 730608, 791492, 821934, 919152, 1034046, 1095912, 1187238, 1232901, 1378728, 1582984, 1643868, 1780857, 2068092, 2191824, 2374476, 2465802, 2757456, 3165968, 3287736, 3561714, 4136184, 4748952, 4931604, 5342571, 6575472, 7123428, 8272368, 9497904, 9863208, 10685142, 14246856, 16027713, 19726416, 21370284, 28493712, 32055426, 42740568, 64110852, 85481136, 128221704, 256443408]

約数ペア:

[(1, 256443408), (2, 128221704), (3, 85481136), (4, 64110852), (6, 42740568), (8, 32055426), (9, 28493712), (12, 21370284), (13, 19726416), (16, 16027713), (18, 14246856), (24, 10685142), (26, 9863208), (27, 9497904), (31, 8272368), (36, 7123428), (39, 6575472), (48, 5342571), (52, 4931604), (54, 4748952), (62, 4136184), (72, 3561714), (78, 3287736), (81, 3165968), (93, 2757456), (104, 2465802), (108, 2374476), (117, 2191824), (124, 2068092), (144, 1780857), (156, 1643868), (162, 1582984), (186, 1378728), (208, 1232901), (216, 1187238), (234, 1095912), (248, 1034046), (279, 919152), (312, 821934), (324, 791492), (351, 730608), (372, 689364), (403, 636336), (432, 593619), (468, 547956), (491, 522288), (496, 517023), (558, 459576), (624, 410967), (648, 395746), (702, 365304), (744, 344682), (806, 318168), (837, 306384), (936, 273978), (982, 261144), (1053, 243536), (1116, 229788), (1209, 212112), (1296, 197873), (1404, 182652), (1473, 174096), (1488, 172341), (1612, 159084), (1674, 153192), (1872, 136989), (1964, 130572), (2106, 121768), (2232, 114894), (2418, 106056), (2511, 102128), (2808, 91326), (2946, 87048), (3224, 79542), (3348, 76596), (3627, 70704), (3928, 65286), (4212, 60884), (4419, 58032), (4464, 57447), (4836, 53028), (5022, 51064), (5616, 45663), (5892, 43524), (6383, 40176), (6448, 39771), (6696, 38298), (7254, 35352), (7856, 32643), (8424, 30442), (8838, 29016), (9672, 26514), (10044, 25532), (10881, 23568), (11784, 21762), (12766, 20088), (13257, 19344), (13392, 19149), (14508, 17676), (15221, 16848)]