278706960

素因数分解:

$2^4\times 3^3\times 5^1\times 7^1\times {\mathrm{18433}}^1$

素因数の和:18462

約数の個数: 160

約数和(自身を含む): 1097191680

約数和(自身を除く): 818484720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 84, 90, 105, 108, 112, 120, 126, 135, 140, 144, 168, 180, 189, 210, 216, 240, 252, 270, 280, 315, 336, 360, 378, 420, 432, 504, 540, 560, 630, 720, 756, 840, 945, 1008, 1080, 1260, 1512, 1680, 1890, 2160, 2520, 3024, 3780, 5040, 7560, 15120, 18433, 36866, 55299, 73732, 92165, 110598, 129031, 147464, 165897, 184330, 221196, 258062, 276495, 294928, 331794, 368660, 387093, 442392, 497691, 516124, 552990, 645155, 663588, 737320, 774186, 829485, 884784, 995382, 1032248, 1105980, 1161279, 1290310, 1327176, 1474640, 1548372, 1658970, 1935465, 1990764, 2064496, 2211960, 2322558, 2488455, 2580620, 2654352, 3096744, 3317940, 3483837, 3870930, 3981528, 4423920, 4645116, 4976910, 5161240, 5806395, 6193488, 6635880, 6967674, 7741860, 7963056, 9290232, 9953820, 10322480, 11612790, 13271760, 13935348, 15483720, 17419185, 18580464, 19907640, 23225580, 27870696, 30967440, 34838370, 39815280, 46451160, 55741392, 69676740, 92902320, 139353480, 278706960]

約数ペア:

[(1, 278706960), (2, 139353480), (3, 92902320), (4, 69676740), (5, 55741392), (6, 46451160), (7, 39815280), (8, 34838370), (9, 30967440), (10, 27870696), (12, 23225580), (14, 19907640), (15, 18580464), (16, 17419185), (18, 15483720), (20, 13935348), (21, 13271760), (24, 11612790), (27, 10322480), (28, 9953820), (30, 9290232), (35, 7963056), (36, 7741860), (40, 6967674), (42, 6635880), (45, 6193488), (48, 5806395), (54, 5161240), (56, 4976910), (60, 4645116), (63, 4423920), (70, 3981528), (72, 3870930), (80, 3483837), (84, 3317940), (90, 3096744), (105, 2654352), (108, 2580620), (112, 2488455), (120, 2322558), (126, 2211960), (135, 2064496), (140, 1990764), (144, 1935465), (168, 1658970), (180, 1548372), (189, 1474640), (210, 1327176), (216, 1290310), (240, 1161279), (252, 1105980), (270, 1032248), (280, 995382), (315, 884784), (336, 829485), (360, 774186), (378, 737320), (420, 663588), (432, 645155), (504, 552990), (540, 516124), (560, 497691), (630, 442392), (720, 387093), (756, 368660), (840, 331794), (945, 294928), (1008, 276495), (1080, 258062), (1260, 221196), (1512, 184330), (1680, 165897), (1890, 147464), (2160, 129031), (2520, 110598), (3024, 92165), (3780, 73732), (5040, 55299), (7560, 36866), (15120, 18433)]