257855520

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{43}}^1$

素因数の和:136

約数の個数: 288

約数和(自身を含む): 924872256

約数和(自身を除く): 667016736

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 31, 32, 39, 40, 43, 48, 52, 60, 62, 65, 78, 80, 86, 93, 96, 104, 120, 124, 129, 130, 155, 156, 160, 172, 186, 195, 208, 215, 240, 248, 258, 260, 310, 312, 344, 372, 390, 403, 416, 430, 465, 480, 496, 516, 520, 559, 620, 624, 645, 688, 744, 780, 806, 860, 930, 961, 992, 1032, 1040, 1118, 1209, 1240, 1248, 1290, 1333, 1376, 1488, 1560, 1612, 1677, 1720, 1860, 1922, 2015, 2064, 2080, 2236, 2418, 2480, 2580, 2666, 2795, 2883, 2976, 3120, 3224, 3354, 3440, 3720, 3844, 3999, 4030, 4128, 4472, 4805, 4836, 4960, 5160, 5332, 5590, 5766, 6045, 6240, 6448, 6665, 6708, 6880, 7440, 7688, 7998, 8060, 8385, 8944, 9610, 9672, 10320, 10664, 11180, 11532, 12090, 12493, 12896, 13330, 13416, 14415, 14880, 15376, 15996, 16120, 16770, 17329, 17888, 19220, 19344, 19995, 20640, 21328, 22360, 23064, 24180, 24986, 26660, 26832, 28830, 30752, 31992, 32240, 33540, 34658, 37479, 38440, 38688, 39990, 41323, 42656, 44720, 46128, 48360, 49972, 51987, 53320, 53664, 57660, 62465, 63984, 64480, 67080, 69316, 74958, 76880, 79980, 82646, 86645, 89440, 92256, 96720, 99944, 103974, 106640, 115320, 123969, 124930, 127968, 134160, 138632, 149916, 153760, 159960, 165292, 173290, 187395, 193440, 199888, 206615, 207948, 213280, 230640, 247938, 249860, 259935, 268320, 277264, 299832, 319920, 330584, 346580, 374790, 399776, 413230, 415896, 461280, 495876, 499720, 519870, 537199, 554528, 599664, 619845, 639840, 661168, 693160, 749580, 826460, 831792, 991752, 999440, 1039740, 1074398, 1199328, 1239690, 1322336, 1386320, 1499160, 1611597, 1652920, 1663584, 1983504, 1998880, 2079480, 2148796, 2479380, 2685995, 2772640, 2998320, 3223194, 3305840, 3967008, 4158960, 4297592, 4958760, 5371990, 5996640, 6446388, 6611680, 8057985, 8317920, 8595184, 9917520, 10743980, 12892776, 16115970, 17190368, 19835040, 21487960, 25785552, 32231940, 42975920, 51571104, 64463880, 85951840, 128927760, 257855520]

約数ペア:

[(1, 257855520), (2, 128927760), (3, 85951840), (4, 64463880), (5, 51571104), (6, 42975920), (8, 32231940), (10, 25785552), (12, 21487960), (13, 19835040), (15, 17190368), (16, 16115970), (20, 12892776), (24, 10743980), (26, 9917520), (30, 8595184), (31, 8317920), (32, 8057985), (39, 6611680), (40, 6446388), (43, 5996640), (48, 5371990), (52, 4958760), (60, 4297592), (62, 4158960), (65, 3967008), (78, 3305840), (80, 3223194), (86, 2998320), (93, 2772640), (96, 2685995), (104, 2479380), (120, 2148796), (124, 2079480), (129, 1998880), (130, 1983504), (155, 1663584), (156, 1652920), (160, 1611597), (172, 1499160), (186, 1386320), (195, 1322336), (208, 1239690), (215, 1199328), (240, 1074398), (248, 1039740), (258, 999440), (260, 991752), (310, 831792), (312, 826460), (344, 749580), (372, 693160), (390, 661168), (403, 639840), (416, 619845), (430, 599664), (465, 554528), (480, 537199), (496, 519870), (516, 499720), (520, 495876), (559, 461280), (620, 415896), (624, 413230), (645, 399776), (688, 374790), (744, 346580), (780, 330584), (806, 319920), (860, 299832), (930, 277264), (961, 268320), (992, 259935), (1032, 249860), (1040, 247938), (1118, 230640), (1209, 213280), (1240, 207948), (1248, 206615), (1290, 199888), (1333, 193440), (1376, 187395), (1488, 173290), (1560, 165292), (1612, 159960), (1677, 153760), (1720, 149916), (1860, 138632), (1922, 134160), (2015, 127968), (2064, 124930), (2080, 123969), (2236, 115320), (2418, 106640), (2480, 103974), (2580, 99944), (2666, 96720), (2795, 92256), (2883, 89440), (2976, 86645), (3120, 82646), (3224, 79980), (3354, 76880), (3440, 74958), (3720, 69316), (3844, 67080), (3999, 64480), (4030, 63984), (4128, 62465), (4472, 57660), (4805, 53664), (4836, 53320), (4960, 51987), (5160, 49972), (5332, 48360), (5590, 46128), (5766, 44720), (6045, 42656), (6240, 41323), (6448, 39990), (6665, 38688), (6708, 38440), (6880, 37479), (7440, 34658), (7688, 33540), (7998, 32240), (8060, 31992), (8385, 30752), (8944, 28830), (9610, 26832), (9672, 26660), (10320, 24986), (10664, 24180), (11180, 23064), (11532, 22360), (12090, 21328), (12493, 20640), (12896, 19995), (13330, 19344), (13416, 19220), (14415, 17888), (14880, 17329), (15376, 16770), (15996, 16120)]