256751664

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{479}}^1\times {\mathrm{859}}^1$

素因数の和:1362

約数の個数: 80

約数和(自身を含む): 716620800

約数和(自身を除く): 459869136

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 104, 156, 208, 312, 479, 624, 859, 958, 1437, 1718, 1916, 2577, 2874, 3436, 3832, 5154, 5748, 6227, 6872, 7664, 10308, 11167, 11496, 12454, 13744, 18681, 20616, 22334, 22992, 24908, 33501, 37362, 41232, 44668, 49816, 67002, 74724, 89336, 99632, 134004, 149448, 178672, 268008, 298896, 411461, 536016, 822922, 1234383, 1645844, 2468766, 3291688, 4937532, 5348993, 6583376, 9875064, 10697986, 16046979, 19750128, 21395972, 32093958, 42791944, 64187916, 85583888, 128375832, 256751664]

約数ペア:

[(1, 256751664), (2, 128375832), (3, 85583888), (4, 64187916), (6, 42791944), (8, 32093958), (12, 21395972), (13, 19750128), (16, 16046979), (24, 10697986), (26, 9875064), (39, 6583376), (48, 5348993), (52, 4937532), (78, 3291688), (104, 2468766), (156, 1645844), (208, 1234383), (312, 822922), (479, 536016), (624, 411461), (859, 298896), (958, 268008), (1437, 178672), (1718, 149448), (1916, 134004), (2577, 99632), (2874, 89336), (3436, 74724), (3832, 67002), (5154, 49816), (5748, 44668), (6227, 41232), (6872, 37362), (7664, 33501), (10308, 24908), (11167, 22992), (11496, 22334), (12454, 20616), (13744, 18681)]