256669920

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{13711}}^1$

素因数の和:13745

約数の個数: 144

約数和(自身を含む): 943330752

約数和(自身を除く): 686660832

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 32, 36, 39, 40, 45, 48, 52, 60, 65, 72, 78, 80, 90, 96, 104, 117, 120, 130, 144, 156, 160, 180, 195, 208, 234, 240, 260, 288, 312, 360, 390, 416, 468, 480, 520, 585, 624, 720, 780, 936, 1040, 1170, 1248, 1440, 1560, 1872, 2080, 2340, 3120, 3744, 4680, 6240, 9360, 13711, 18720, 27422, 41133, 54844, 68555, 82266, 109688, 123399, 137110, 164532, 178243, 205665, 219376, 246798, 274220, 329064, 356486, 411330, 438752, 493596, 534729, 548440, 616995, 658128, 712972, 822660, 891215, 987192, 1069458, 1096880, 1233990, 1316256, 1425944, 1604187, 1645320, 1782430, 1974384, 2138916, 2193760, 2467980, 2673645, 2851888, 3208374, 3290640, 3564860, 3948768, 4277832, 4935960, 5347290, 5703776, 6416748, 6581280, 7129720, 8020935, 8555664, 9871920, 10694580, 12833496, 14259440, 16041870, 17111328, 19743840, 21389160, 25666992, 28518880, 32083740, 42778320, 51333984, 64167480, 85556640, 128334960, 256669920]

約数ペア:

[(1, 256669920), (2, 128334960), (3, 85556640), (4, 64167480), (5, 51333984), (6, 42778320), (8, 32083740), (9, 28518880), (10, 25666992), (12, 21389160), (13, 19743840), (15, 17111328), (16, 16041870), (18, 14259440), (20, 12833496), (24, 10694580), (26, 9871920), (30, 8555664), (32, 8020935), (36, 7129720), (39, 6581280), (40, 6416748), (45, 5703776), (48, 5347290), (52, 4935960), (60, 4277832), (65, 3948768), (72, 3564860), (78, 3290640), (80, 3208374), (90, 2851888), (96, 2673645), (104, 2467980), (117, 2193760), (120, 2138916), (130, 1974384), (144, 1782430), (156, 1645320), (160, 1604187), (180, 1425944), (195, 1316256), (208, 1233990), (234, 1096880), (240, 1069458), (260, 987192), (288, 891215), (312, 822660), (360, 712972), (390, 658128), (416, 616995), (468, 548440), (480, 534729), (520, 493596), (585, 438752), (624, 411330), (720, 356486), (780, 329064), (936, 274220), (1040, 246798), (1170, 219376), (1248, 205665), (1440, 178243), (1560, 164532), (1872, 137110), (2080, 123399), (2340, 109688), (3120, 82266), (3744, 68555), (4680, 54844), (6240, 41133), (9360, 27422), (13711, 18720)]