256063808

素因数分解:

$2^6\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{571}}^1$

素因数の和:621

約数の個数: 168

約数和(自身を含む): 695638944

約数和(自身を除く): 439575136

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 16, 22, 26, 28, 32, 44, 49, 52, 56, 64, 77, 88, 91, 98, 104, 112, 143, 154, 176, 182, 196, 208, 224, 286, 308, 352, 364, 392, 416, 448, 539, 571, 572, 616, 637, 704, 728, 784, 832, 1001, 1078, 1142, 1144, 1232, 1274, 1456, 1568, 2002, 2156, 2284, 2288, 2464, 2548, 2912, 3136, 3997, 4004, 4312, 4568, 4576, 4928, 5096, 5824, 6281, 7007, 7423, 7994, 8008, 8624, 9136, 9152, 10192, 12562, 14014, 14846, 15988, 16016, 17248, 18272, 20384, 25124, 27979, 28028, 29692, 31976, 32032, 34496, 36544, 40768, 43967, 50248, 51961, 55958, 56056, 59384, 63952, 64064, 81653, 87934, 100496, 103922, 111916, 112112, 118768, 127904, 163306, 175868, 200992, 207844, 223832, 224224, 237536, 255808, 307769, 326612, 351736, 363727, 401984, 415688, 447664, 448448, 475072, 571571, 615538, 653224, 703472, 727454, 831376, 895328, 1143142, 1231076, 1306448, 1406944, 1454908, 1662752, 1790656, 2286284, 2462152, 2612896, 2813888, 2909816, 3325504, 4000997, 4572568, 4924304, 5225792, 5819632, 8001994, 9145136, 9848608, 11639264, 16003988, 18290272, 19697216, 23278528, 32007976, 36580544, 64015952, 128031904, 256063808]

約数ペア:

[(1, 256063808), (2, 128031904), (4, 64015952), (7, 36580544), (8, 32007976), (11, 23278528), (13, 19697216), (14, 18290272), (16, 16003988), (22, 11639264), (26, 9848608), (28, 9145136), (32, 8001994), (44, 5819632), (49, 5225792), (52, 4924304), (56, 4572568), (64, 4000997), (77, 3325504), (88, 2909816), (91, 2813888), (98, 2612896), (104, 2462152), (112, 2286284), (143, 1790656), (154, 1662752), (176, 1454908), (182, 1406944), (196, 1306448), (208, 1231076), (224, 1143142), (286, 895328), (308, 831376), (352, 727454), (364, 703472), (392, 653224), (416, 615538), (448, 571571), (539, 475072), (571, 448448), (572, 447664), (616, 415688), (637, 401984), (704, 363727), (728, 351736), (784, 326612), (832, 307769), (1001, 255808), (1078, 237536), (1142, 224224), (1144, 223832), (1232, 207844), (1274, 200992), (1456, 175868), (1568, 163306), (2002, 127904), (2156, 118768), (2284, 112112), (2288, 111916), (2464, 103922), (2548, 100496), (2912, 87934), (3136, 81653), (3997, 64064), (4004, 63952), (4312, 59384), (4568, 56056), (4576, 55958), (4928, 51961), (5096, 50248), (5824, 43967), (6281, 40768), (7007, 36544), (7423, 34496), (7994, 32032), (8008, 31976), (8624, 29692), (9136, 28028), (9152, 27979), (10192, 25124), (12562, 20384), (14014, 18272), (14846, 17248), (15988, 16016)]