217208880

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{607}}^1$

素因数の和:704

約数の個数: 240

約数和(自身を含む): 846802944

約数和(自身を除く): 629594064

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, 71, 72, 80, 84, 90, 105, 112, 120, 126, 140, 142, 144, 168, 180, 210, 213, 240, 252, 280, 284, 315, 336, 355, 360, 420, 426, 497, 504, 560, 568, 607, 630, 639, 710, 720, 840, 852, 994, 1008, 1065, 1136, 1214, 1260, 1278, 1420, 1491, 1680, 1704, 1821, 1988, 2130, 2428, 2485, 2520, 2556, 2840, 2982, 3035, 3195, 3408, 3642, 3976, 4249, 4260, 4473, 4856, 4970, 5040, 5112, 5463, 5680, 5964, 6070, 6390, 7284, 7455, 7952, 8498, 8520, 8946, 9105, 9712, 9940, 10224, 10926, 11928, 12140, 12747, 12780, 14568, 14910, 16996, 17040, 17892, 18210, 19880, 21245, 21852, 22365, 23856, 24280, 25494, 25560, 27315, 29136, 29820, 33992, 35784, 36420, 38241, 39760, 42490, 43097, 43704, 44730, 48560, 50988, 51120, 54630, 59640, 63735, 67984, 71568, 72840, 76482, 84980, 86194, 87408, 89460, 101976, 109260, 119280, 127470, 129291, 145680, 152964, 169960, 172388, 178920, 191205, 203952, 215485, 218520, 254940, 258582, 301679, 305928, 339920, 344776, 357840, 382410, 387873, 430970, 437040, 509880, 517164, 603358, 611856, 646455, 689552, 764820, 775746, 861940, 905037, 1019760, 1034328, 1206716, 1292910, 1508395, 1529640, 1551492, 1723880, 1810074, 1939365, 2068656, 2413432, 2585820, 2715111, 3016790, 3059280, 3102984, 3447760, 3620148, 3878730, 4525185, 4826864, 5171640, 5430222, 6033580, 6205968, 7240296, 7757460, 9050370, 10343280, 10860444, 12067160, 13575555, 14480592, 15514920, 18100740, 21720888, 24134320, 27151110, 31029840, 36201480, 43441776, 54302220, 72402960, 108604440, 217208880]

約数ペア:

[(1, 217208880), (2, 108604440), (3, 72402960), (4, 54302220), (5, 43441776), (6, 36201480), (7, 31029840), (8, 27151110), (9, 24134320), (10, 21720888), (12, 18100740), (14, 15514920), (15, 14480592), (16, 13575555), (18, 12067160), (20, 10860444), (21, 10343280), (24, 9050370), (28, 7757460), (30, 7240296), (35, 6205968), (36, 6033580), (40, 5430222), (42, 5171640), (45, 4826864), (48, 4525185), (56, 3878730), (60, 3620148), (63, 3447760), (70, 3102984), (71, 3059280), (72, 3016790), (80, 2715111), (84, 2585820), (90, 2413432), (105, 2068656), (112, 1939365), (120, 1810074), (126, 1723880), (140, 1551492), (142, 1529640), (144, 1508395), (168, 1292910), (180, 1206716), (210, 1034328), (213, 1019760), (240, 905037), (252, 861940), (280, 775746), (284, 764820), (315, 689552), (336, 646455), (355, 611856), (360, 603358), (420, 517164), (426, 509880), (497, 437040), (504, 430970), (560, 387873), (568, 382410), (607, 357840), (630, 344776), (639, 339920), (710, 305928), (720, 301679), (840, 258582), (852, 254940), (994, 218520), (1008, 215485), (1065, 203952), (1136, 191205), (1214, 178920), (1260, 172388), (1278, 169960), (1420, 152964), (1491, 145680), (1680, 129291), (1704, 127470), (1821, 119280), (1988, 109260), (2130, 101976), (2428, 89460), (2485, 87408), (2520, 86194), (2556, 84980), (2840, 76482), (2982, 72840), (3035, 71568), (3195, 67984), (3408, 63735), (3642, 59640), (3976, 54630), (4249, 51120), (4260, 50988), (4473, 48560), (4856, 44730), (4970, 43704), (5040, 43097), (5112, 42490), (5463, 39760), (5680, 38241), (5964, 36420), (6070, 35784), (6390, 33992), (7284, 29820), (7455, 29136), (7952, 27315), (8498, 25560), (8520, 25494), (8946, 24280), (9105, 23856), (9712, 22365), (9940, 21852), (10224, 21245), (10926, 19880), (11928, 18210), (12140, 17892), (12747, 17040), (12780, 16996), (14568, 14910)]