18710640

素因数分解:

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

素因数の和:2031

約数の個数: 120

約数和(自身を含む): 67704000

約数和(自身を除く): 48993360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 36, 39, 40, 45, 48, 52, 60, 65, 72, 78, 80, 90, 104, 117, 120, 130, 144, 156, 180, 195, 208, 234, 240, 260, 312, 360, 390, 468, 520, 585, 624, 720, 780, 936, 1040, 1170, 1560, 1872, 1999, 2340, 3120, 3998, 4680, 5997, 7996, 9360, 9995, 11994, 15992, 17991, 19990, 23988, 25987, 29985, 31984, 35982, 39980, 47976, 51974, 59970, 71964, 77961, 79960, 89955, 95952, 103948, 119940, 129935, 143928, 155922, 159920, 179910, 207896, 233883, 239880, 259870, 287856, 311844, 359820, 389805, 415792, 467766, 479760, 519740, 623688, 719640, 779610, 935532, 1039480, 1169415, 1247376, 1439280, 1559220, 1871064, 2078960, 2338830, 3118440, 3742128, 4677660, 6236880, 9355320, 18710640]

約数ペア:

[(1, 18710640), (2, 9355320), (3, 6236880), (4, 4677660), (5, 3742128), (6, 3118440), (8, 2338830), (9, 2078960), (10, 1871064), (12, 1559220), (13, 1439280), (15, 1247376), (16, 1169415), (18, 1039480), (20, 935532), (24, 779610), (26, 719640), (30, 623688), (36, 519740), (39, 479760), (40, 467766), (45, 415792), (48, 389805), (52, 359820), (60, 311844), (65, 287856), (72, 259870), (78, 239880), (80, 233883), (90, 207896), (104, 179910), (117, 159920), (120, 155922), (130, 143928), (144, 129935), (156, 119940), (180, 103948), (195, 95952), (208, 89955), (234, 79960), (240, 77961), (260, 71964), (312, 59970), (360, 51974), (390, 47976), (468, 39980), (520, 35982), (585, 31984), (624, 29985), (720, 25987), (780, 23988), (936, 19990), (1040, 17991), (1170, 15992), (1560, 11994), (1872, 9995), (1999, 9360), (2340, 7996), (3120, 5997), (3998, 4680)]