205637040

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{40801}}^1$

素因数の和:40827

約数の個数: 120

約数和(自身を含む): 789273888

約数和(自身を除く): 583636848

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 210, 240, 252, 280, 315, 336, 360, 420, 504, 560, 630, 720, 840, 1008, 1260, 1680, 2520, 5040, 40801, 81602, 122403, 163204, 204005, 244806, 285607, 326408, 367209, 408010, 489612, 571214, 612015, 652816, 734418, 816020, 856821, 979224, 1142428, 1224030, 1428035, 1468836, 1632040, 1713642, 1836045, 1958448, 2284856, 2448060, 2570463, 2856070, 2937672, 3264080, 3427284, 3672090, 4284105, 4569712, 4896120, 5140926, 5712140, 5875344, 6854568, 7344180, 8568210, 9792240, 10281852, 11424280, 12852315, 13709136, 14688360, 17136420, 20563704, 22848560, 25704630, 29376720, 34272840, 41127408, 51409260, 68545680, 102818520, 205637040]

約数ペア:

[(1, 205637040), (2, 102818520), (3, 68545680), (4, 51409260), (5, 41127408), (6, 34272840), (7, 29376720), (8, 25704630), (9, 22848560), (10, 20563704), (12, 17136420), (14, 14688360), (15, 13709136), (16, 12852315), (18, 11424280), (20, 10281852), (21, 9792240), (24, 8568210), (28, 7344180), (30, 6854568), (35, 5875344), (36, 5712140), (40, 5140926), (42, 4896120), (45, 4569712), (48, 4284105), (56, 3672090), (60, 3427284), (63, 3264080), (70, 2937672), (72, 2856070), (80, 2570463), (84, 2448060), (90, 2284856), (105, 1958448), (112, 1836045), (120, 1713642), (126, 1632040), (140, 1468836), (144, 1428035), (168, 1224030), (180, 1142428), (210, 979224), (240, 856821), (252, 816020), (280, 734418), (315, 652816), (336, 612015), (360, 571214), (420, 489612), (504, 408010), (560, 367209), (630, 326408), (720, 285607), (840, 244806), (1008, 204005), (1260, 163204), (1680, 122403), (2520, 81602), (5040, 40801)]