218661520

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{461}}^1$

素因数の和:510

約数の個数: 180

約数和(自身を含む): 651450492

約数和(自身を除く): 432788972

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 49, 55, 56, 70, 77, 80, 88, 98, 110, 112, 121, 140, 154, 176, 196, 220, 242, 245, 280, 308, 385, 392, 440, 461, 484, 490, 539, 560, 605, 616, 770, 784, 847, 880, 922, 968, 980, 1078, 1210, 1232, 1540, 1694, 1844, 1936, 1960, 2156, 2305, 2420, 2695, 3080, 3227, 3388, 3688, 3920, 4235, 4312, 4610, 4840, 5071, 5390, 5929, 6160, 6454, 6776, 7376, 8470, 8624, 9220, 9680, 10142, 10780, 11858, 12908, 13552, 16135, 16940, 18440, 20284, 21560, 22589, 23716, 25355, 25816, 29645, 32270, 33880, 35497, 36880, 40568, 43120, 45178, 47432, 50710, 51632, 55781, 59290, 64540, 67760, 70994, 81136, 90356, 94864, 101420, 111562, 112945, 118580, 129080, 141988, 177485, 180712, 202840, 223124, 225890, 237160, 248479, 258160, 278905, 283976, 354970, 361424, 390467, 405680, 446248, 451780, 474320, 496958, 557810, 567952, 709940, 780934, 892496, 903560, 993916, 1115620, 1242395, 1419880, 1561868, 1807120, 1952335, 1987832, 2231240, 2484790, 2733269, 2839760, 3123736, 3904670, 3975664, 4462480, 4969580, 5466538, 6247472, 7809340, 9939160, 10933076, 13666345, 15618680, 19878320, 21866152, 27332690, 31237360, 43732304, 54665380, 109330760, 218661520]

約数ペア:

[(1, 218661520), (2, 109330760), (4, 54665380), (5, 43732304), (7, 31237360), (8, 27332690), (10, 21866152), (11, 19878320), (14, 15618680), (16, 13666345), (20, 10933076), (22, 9939160), (28, 7809340), (35, 6247472), (40, 5466538), (44, 4969580), (49, 4462480), (55, 3975664), (56, 3904670), (70, 3123736), (77, 2839760), (80, 2733269), (88, 2484790), (98, 2231240), (110, 1987832), (112, 1952335), (121, 1807120), (140, 1561868), (154, 1419880), (176, 1242395), (196, 1115620), (220, 993916), (242, 903560), (245, 892496), (280, 780934), (308, 709940), (385, 567952), (392, 557810), (440, 496958), (461, 474320), (484, 451780), (490, 446248), (539, 405680), (560, 390467), (605, 361424), (616, 354970), (770, 283976), (784, 278905), (847, 258160), (880, 248479), (922, 237160), (968, 225890), (980, 223124), (1078, 202840), (1210, 180712), (1232, 177485), (1540, 141988), (1694, 129080), (1844, 118580), (1936, 112945), (1960, 111562), (2156, 101420), (2305, 94864), (2420, 90356), (2695, 81136), (3080, 70994), (3227, 67760), (3388, 64540), (3688, 59290), (3920, 55781), (4235, 51632), (4312, 50710), (4610, 47432), (4840, 45178), (5071, 43120), (5390, 40568), (5929, 36880), (6160, 35497), (6454, 33880), (6776, 32270), (7376, 29645), (8470, 25816), (8624, 25355), (9220, 23716), (9680, 22589), (10142, 21560), (10780, 20284), (11858, 18440), (12908, 16940), (13552, 16135)]