198274986

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{257}}^1$

素因数の和:445

約数の個数: 128

約数和(自身を含む): 547868160

約数和(自身を除く): 349593174

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, 257, 273, 314, 351, 378, 471, 514, 546, 702, 771, 819, 942, 1099, 1413, 1542, 1638, 1799, 2041, 2198, 2313, 2457, 2826, 3297, 3341, 3598, 4082, 4239, 4626, 4914, 5397, 6123, 6594, 6682, 6939, 8478, 9891, 10023, 10794, 12246, 13878, 14287, 16191, 18369, 19782, 20046, 23387, 28574, 29673, 30069, 32382, 36738, 40349, 42861, 46774, 48573, 55107, 59346, 60138, 70161, 80698, 85722, 90207, 97146, 110214, 121047, 128583, 140322, 180414, 210483, 242094, 257166, 282443, 363141, 385749, 420966, 524537, 564886, 631449, 726282, 771498, 847329, 1049074, 1089423, 1262898, 1573611, 1694658, 2178846, 2541987, 3147222, 3671759, 4720833, 5083974, 7343518, 7625961, 9441666, 11015277, 14162499, 15251922, 22030554, 28324998, 33045831, 66091662, 99137493, 198274986]

約数ペア:

[(1, 198274986), (2, 99137493), (3, 66091662), (6, 33045831), (7, 28324998), (9, 22030554), (13, 15251922), (14, 14162499), (18, 11015277), (21, 9441666), (26, 7625961), (27, 7343518), (39, 5083974), (42, 4720833), (54, 3671759), (63, 3147222), (78, 2541987), (91, 2178846), (117, 1694658), (126, 1573611), (157, 1262898), (182, 1089423), (189, 1049074), (234, 847329), (257, 771498), (273, 726282), (314, 631449), (351, 564886), (378, 524537), (471, 420966), (514, 385749), (546, 363141), (702, 282443), (771, 257166), (819, 242094), (942, 210483), (1099, 180414), (1413, 140322), (1542, 128583), (1638, 121047), (1799, 110214), (2041, 97146), (2198, 90207), (2313, 85722), (2457, 80698), (2826, 70161), (3297, 60138), (3341, 59346), (3598, 55107), (4082, 48573), (4239, 46774), (4626, 42861), (4914, 40349), (5397, 36738), (6123, 32382), (6594, 30069), (6682, 29673), (6939, 28574), (8478, 23387), (9891, 20046), (10023, 19782), (10794, 18369), (12246, 16191), (13878, 14287)]