255365838

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{331}}^1$

素因数の和:519

約数の個数: 128

約数和(自身を含む): 705008640

約数和(自身を除く): 449642802

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 27, 39, 42, 54, 63, 78, 91, 117, 126, 157, 182, 189, 234, 273, 314, 331, 351, 378, 471, 546, 662, 702, 819, 942, 993, 1099, 1413, 1638, 1986, 2041, 2198, 2317, 2457, 2826, 2979, 3297, 4082, 4239, 4303, 4634, 4914, 5958, 6123, 6594, 6951, 8478, 8606, 8937, 9891, 12246, 12909, 13902, 14287, 17874, 18369, 19782, 20853, 25818, 28574, 29673, 30121, 36738, 38727, 41706, 42861, 51967, 55107, 59346, 60242, 62559, 77454, 85722, 90363, 103934, 110214, 116181, 125118, 128583, 155901, 180726, 232362, 257166, 271089, 311802, 363769, 385749, 467703, 542178, 675571, 727538, 771498, 813267, 935406, 1091307, 1351142, 1403109, 1626534, 2026713, 2182614, 2806218, 3273921, 4053426, 4728997, 6080139, 6547842, 9457994, 9821763, 12160278, 14186991, 18240417, 19643526, 28373982, 36480834, 42560973, 85121946, 127682919, 255365838]

約数ペア:

[(1, 255365838), (2, 127682919), (3, 85121946), (6, 42560973), (7, 36480834), (9, 28373982), (13, 19643526), (14, 18240417), (18, 14186991), (21, 12160278), (26, 9821763), (27, 9457994), (39, 6547842), (42, 6080139), (54, 4728997), (63, 4053426), (78, 3273921), (91, 2806218), (117, 2182614), (126, 2026713), (157, 1626534), (182, 1403109), (189, 1351142), (234, 1091307), (273, 935406), (314, 813267), (331, 771498), (351, 727538), (378, 675571), (471, 542178), (546, 467703), (662, 385749), (702, 363769), (819, 311802), (942, 271089), (993, 257166), (1099, 232362), (1413, 180726), (1638, 155901), (1986, 128583), (2041, 125118), (2198, 116181), (2317, 110214), (2457, 103934), (2826, 90363), (2979, 85722), (3297, 77454), (4082, 62559), (4239, 60242), (4303, 59346), (4634, 55107), (4914, 51967), (5958, 42861), (6123, 41706), (6594, 38727), (6951, 36738), (8478, 30121), (8606, 29673), (8937, 28574), (9891, 25818), (12246, 20853), (12909, 19782), (13902, 18369), (14287, 17874)]