56131920

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1999}}^1$

素因数の和:2034

約数の個数: 160

約数和(自身を含む): 208320000

約数和(自身を除く): 152188080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 27, 30, 36, 39, 40, 45, 48, 52, 54, 60, 65, 72, 78, 80, 90, 104, 108, 117, 120, 130, 135, 144, 156, 180, 195, 208, 216, 234, 240, 260, 270, 312, 351, 360, 390, 432, 468, 520, 540, 585, 624, 702, 720, 780, 936, 1040, 1080, 1170, 1404, 1560, 1755, 1872, 1999, 2160, 2340, 2808, 3120, 3510, 3998, 4680, 5616, 5997, 7020, 7996, 9360, 9995, 11994, 14040, 15992, 17991, 19990, 23988, 25987, 28080, 29985, 31984, 35982, 39980, 47976, 51974, 53973, 59970, 71964, 77961, 79960, 89955, 95952, 103948, 107946, 119940, 129935, 143928, 155922, 159920, 179910, 207896, 215892, 233883, 239880, 259870, 269865, 287856, 311844, 359820, 389805, 415792, 431784, 467766, 479760, 519740, 539730, 623688, 701649, 719640, 779610, 863568, 935532, 1039480, 1079460, 1169415, 1247376, 1403298, 1439280, 1559220, 1871064, 2078960, 2158920, 2338830, 2806596, 3118440, 3508245, 3742128, 4317840, 4677660, 5613192, 6236880, 7016490, 9355320, 11226384, 14032980, 18710640, 28065960, 56131920]

約数ペア:

[(1, 56131920), (2, 28065960), (3, 18710640), (4, 14032980), (5, 11226384), (6, 9355320), (8, 7016490), (9, 6236880), (10, 5613192), (12, 4677660), (13, 4317840), (15, 3742128), (16, 3508245), (18, 3118440), (20, 2806596), (24, 2338830), (26, 2158920), (27, 2078960), (30, 1871064), (36, 1559220), (39, 1439280), (40, 1403298), (45, 1247376), (48, 1169415), (52, 1079460), (54, 1039480), (60, 935532), (65, 863568), (72, 779610), (78, 719640), (80, 701649), (90, 623688), (104, 539730), (108, 519740), (117, 479760), (120, 467766), (130, 431784), (135, 415792), (144, 389805), (156, 359820), (180, 311844), (195, 287856), (208, 269865), (216, 259870), (234, 239880), (240, 233883), (260, 215892), (270, 207896), (312, 179910), (351, 159920), (360, 155922), (390, 143928), (432, 129935), (468, 119940), (520, 107946), (540, 103948), (585, 95952), (624, 89955), (702, 79960), (720, 77961), (780, 71964), (936, 59970), (1040, 53973), (1080, 51974), (1170, 47976), (1404, 39980), (1560, 35982), (1755, 31984), (1872, 29985), (1999, 28080), (2160, 25987), (2340, 23988), (2808, 19990), (3120, 17991), (3510, 15992), (3998, 14040), (4680, 11994), (5616, 9995), (5997, 9360), (7020, 7996)]