257801208

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{839}}^1$

素因数の和:945

約数の個数: 128

約数和(自身を含む): 774144000

約数和(自身を除く): 516342792

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 31, 42, 56, 59, 62, 84, 93, 118, 124, 168, 177, 186, 217, 236, 248, 354, 372, 413, 434, 472, 651, 708, 744, 826, 839, 868, 1239, 1302, 1416, 1652, 1678, 1736, 1829, 2478, 2517, 2604, 3304, 3356, 3658, 4956, 5034, 5208, 5487, 5873, 6712, 7316, 9912, 10068, 10974, 11746, 12803, 14632, 17619, 20136, 21948, 23492, 25606, 26009, 35238, 38409, 43896, 46984, 49501, 51212, 52018, 70476, 76818, 78027, 99002, 102424, 104036, 140952, 148503, 153636, 156054, 182063, 198004, 208072, 297006, 307272, 312108, 346507, 364126, 396008, 546189, 594012, 624216, 693014, 728252, 1039521, 1092378, 1188024, 1386028, 1456504, 1534531, 2079042, 2184756, 2772056, 3069062, 4158084, 4369512, 4603593, 6138124, 8316168, 9207186, 10741717, 12276248, 18414372, 21483434, 32225151, 36828744, 42966868, 64450302, 85933736, 128900604, 257801208]

約数ペア:

[(1, 257801208), (2, 128900604), (3, 85933736), (4, 64450302), (6, 42966868), (7, 36828744), (8, 32225151), (12, 21483434), (14, 18414372), (21, 12276248), (24, 10741717), (28, 9207186), (31, 8316168), (42, 6138124), (56, 4603593), (59, 4369512), (62, 4158084), (84, 3069062), (93, 2772056), (118, 2184756), (124, 2079042), (168, 1534531), (177, 1456504), (186, 1386028), (217, 1188024), (236, 1092378), (248, 1039521), (354, 728252), (372, 693014), (413, 624216), (434, 594012), (472, 546189), (651, 396008), (708, 364126), (744, 346507), (826, 312108), (839, 307272), (868, 297006), (1239, 208072), (1302, 198004), (1416, 182063), (1652, 156054), (1678, 153636), (1736, 148503), (1829, 140952), (2478, 104036), (2517, 102424), (2604, 99002), (3304, 78027), (3356, 76818), (3658, 70476), (4956, 52018), (5034, 51212), (5208, 49501), (5487, 46984), (5873, 43896), (6712, 38409), (7316, 35238), (9912, 26009), (10068, 25606), (10974, 23492), (11746, 21948), (12803, 20136), (14632, 17619)]