1780890160

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{953}}^1$

素因数の和:1091

約数の個数: 160

約数和(自身を含む): 4905971712

約数和(自身を除く): 3125081552

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 47, 56, 70, 71, 80, 94, 112, 140, 142, 188, 235, 280, 284, 329, 355, 376, 470, 497, 560, 568, 658, 710, 752, 940, 953, 994, 1136, 1316, 1420, 1645, 1880, 1906, 1988, 2485, 2632, 2840, 3290, 3337, 3760, 3812, 3976, 4765, 4970, 5264, 5680, 6580, 6671, 6674, 7624, 7952, 9530, 9940, 13160, 13342, 13348, 15248, 16685, 19060, 19880, 23359, 26320, 26684, 26696, 33355, 33370, 38120, 39760, 44791, 46718, 53368, 53392, 66710, 66740, 67663, 76240, 89582, 93436, 106736, 116795, 133420, 133480, 135326, 179164, 186872, 223955, 233590, 266840, 266960, 270652, 313537, 338315, 358328, 373744, 447910, 467180, 473641, 533680, 541304, 627074, 676630, 716656, 895820, 934360, 947282, 1082608, 1254148, 1353260, 1567685, 1791640, 1868720, 1894564, 2368205, 2508296, 2706520, 3135370, 3180161, 3583280, 3789128, 4736410, 5016592, 5413040, 6270740, 6360322, 7578256, 9472820, 12541480, 12720644, 15900805, 18945640, 22261127, 25082960, 25441288, 31801610, 37891280, 44522254, 50882576, 63603220, 89044508, 111305635, 127206440, 178089016, 222611270, 254412880, 356178032, 445222540, 890445080, 1780890160]

約数ペア:

[(1, 1780890160), (2, 890445080), (4, 445222540), (5, 356178032), (7, 254412880), (8, 222611270), (10, 178089016), (14, 127206440), (16, 111305635), (20, 89044508), (28, 63603220), (35, 50882576), (40, 44522254), (47, 37891280), (56, 31801610), (70, 25441288), (71, 25082960), (80, 22261127), (94, 18945640), (112, 15900805), (140, 12720644), (142, 12541480), (188, 9472820), (235, 7578256), (280, 6360322), (284, 6270740), (329, 5413040), (355, 5016592), (376, 4736410), (470, 3789128), (497, 3583280), (560, 3180161), (568, 3135370), (658, 2706520), (710, 2508296), (752, 2368205), (940, 1894564), (953, 1868720), (994, 1791640), (1136, 1567685), (1316, 1353260), (1420, 1254148), (1645, 1082608), (1880, 947282), (1906, 934360), (1988, 895820), (2485, 716656), (2632, 676630), (2840, 627074), (3290, 541304), (3337, 533680), (3760, 473641), (3812, 467180), (3976, 447910), (4765, 373744), (4970, 358328), (5264, 338315), (5680, 313537), (6580, 270652), (6671, 266960), (6674, 266840), (7624, 233590), (7952, 223955), (9530, 186872), (9940, 179164), (13160, 135326), (13342, 133480), (13348, 133420), (15248, 116795), (16685, 106736), (19060, 93436), (19880, 89582), (23359, 76240), (26320, 67663), (26684, 66740), (26696, 66710), (33355, 53392), (33370, 53368), (38120, 46718), (39760, 44791)]