21000388640

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{2411}}^1$

素因数の和:2552

約数の個数: 288

約数和(自身を含む): 63609997248

約数和(自身を除く): 42609608608

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 49, 55, 56, 70, 77, 80, 88, 98, 101, 110, 112, 140, 154, 160, 176, 196, 202, 220, 224, 245, 280, 308, 352, 385, 392, 404, 440, 490, 505, 539, 560, 616, 707, 770, 784, 808, 880, 980, 1010, 1078, 1111, 1120, 1232, 1414, 1540, 1568, 1616, 1760, 1960, 2020, 2156, 2222, 2411, 2464, 2695, 2828, 3080, 3232, 3535, 3920, 4040, 4312, 4444, 4822, 4949, 5390, 5555, 5656, 6160, 7070, 7777, 7840, 8080, 8624, 8888, 9644, 9898, 10780, 11110, 11312, 12055, 12320, 14140, 15554, 16160, 16877, 17248, 17776, 19288, 19796, 21560, 22220, 22624, 24110, 24745, 26521, 28280, 31108, 33754, 35552, 38576, 38885, 39592, 43120, 44440, 48220, 49490, 53042, 54439, 56560, 62216, 67508, 77152, 77770, 79184, 84385, 86240, 88880, 96440, 98980, 106084, 108878, 113120, 118139, 124432, 132605, 135016, 155540, 158368, 168770, 177760, 185647, 192880, 197960, 212168, 217756, 236278, 243511, 248864, 265210, 270032, 272195, 311080, 337540, 371294, 385760, 395920, 424336, 435512, 472556, 487022, 530420, 540064, 544390, 590695, 622160, 675080, 742588, 791840, 848672, 871024, 928235, 945112, 974044, 1060840, 1088780, 1181390, 1217555, 1244320, 1299529, 1350160, 1485176, 1704577, 1742048, 1856470, 1890224, 1948088, 2121680, 2177560, 2362780, 2435110, 2599058, 2678621, 2700320, 2970352, 3409154, 3712940, 3780448, 3896176, 4243360, 4355120, 4725560, 4870220, 5198116, 5357242, 5940704, 6497645, 6818308, 7425880, 7792352, 8522885, 8710240, 9451120, 9740440, 10396232, 10714484, 11932039, 12995290, 13393105, 13636616, 14851760, 17045770, 18750347, 18902240, 19480880, 20792464, 21428968, 23864078, 25990580, 26786210, 27273232, 29703520, 34091540, 37500694, 38961760, 41584928, 42857936, 47728156, 51981160, 53572420, 54546464, 59660195, 68183080, 75001388, 85715872, 93751735, 95456312, 103962320, 107144840, 119320390, 131252429, 136366160, 150002776, 187503470, 190912624, 207924640, 214289680, 238640780, 262504858, 272732320, 300005552, 375006940, 381825248, 428579360, 477281560, 525009716, 600011104, 656262145, 750013880, 954563120, 1050019432, 1312524290, 1500027760, 1909126240, 2100038864, 2625048580, 3000055520, 4200077728, 5250097160, 10500194320, 21000388640]

約数ペア:

[(1, 21000388640), (2, 10500194320), (4, 5250097160), (5, 4200077728), (7, 3000055520), (8, 2625048580), (10, 2100038864), (11, 1909126240), (14, 1500027760), (16, 1312524290), (20, 1050019432), (22, 954563120), (28, 750013880), (32, 656262145), (35, 600011104), (40, 525009716), (44, 477281560), (49, 428579360), (55, 381825248), (56, 375006940), (70, 300005552), (77, 272732320), (80, 262504858), (88, 238640780), (98, 214289680), (101, 207924640), (110, 190912624), (112, 187503470), (140, 150002776), (154, 136366160), (160, 131252429), (176, 119320390), (196, 107144840), (202, 103962320), (220, 95456312), (224, 93751735), (245, 85715872), (280, 75001388), (308, 68183080), (352, 59660195), (385, 54546464), (392, 53572420), (404, 51981160), (440, 47728156), (490, 42857936), (505, 41584928), (539, 38961760), (560, 37500694), (616, 34091540), (707, 29703520), (770, 27273232), (784, 26786210), (808, 25990580), (880, 23864078), (980, 21428968), (1010, 20792464), (1078, 19480880), (1111, 18902240), (1120, 18750347), (1232, 17045770), (1414, 14851760), (1540, 13636616), (1568, 13393105), (1616, 12995290), (1760, 11932039), (1960, 10714484), (2020, 10396232), (2156, 9740440), (2222, 9451120), (2411, 8710240), (2464, 8522885), (2695, 7792352), (2828, 7425880), (3080, 6818308), (3232, 6497645), (3535, 5940704), (3920, 5357242), (4040, 5198116), (4312, 4870220), (4444, 4725560), (4822, 4355120), (4949, 4243360), (5390, 3896176), (5555, 3780448), (5656, 3712940), (6160, 3409154), (7070, 2970352), (7777, 2700320), (7840, 2678621), (8080, 2599058), (8624, 2435110), (8888, 2362780), (9644, 2177560), (9898, 2121680), (10780, 1948088), (11110, 1890224), (11312, 1856470), (12055, 1742048), (12320, 1704577), (14140, 1485176), (15554, 1350160), (16160, 1299529), (16877, 1244320), (17248, 1217555), (17776, 1181390), (19288, 1088780), (19796, 1060840), (21560, 974044), (22220, 945112), (22624, 928235), (24110, 871024), (24745, 848672), (26521, 791840), (28280, 742588), (31108, 675080), (33754, 622160), (35552, 590695), (38576, 544390), (38885, 540064), (39592, 530420), (43120, 487022), (44440, 472556), (48220, 435512), (49490, 424336), (53042, 395920), (54439, 385760), (56560, 371294), (62216, 337540), (67508, 311080), (77152, 272195), (77770, 270032), (79184, 265210), (84385, 248864), (86240, 243511), (88880, 236278), (96440, 217756), (98980, 212168), (106084, 197960), (108878, 192880), (113120, 185647), (118139, 177760), (124432, 168770), (132605, 158368), (135016, 155540)]