19487520

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{347}}^1$

素因数の和:384

約数の個数: 192

約数和(自身を含む): 73664640

約数和(自身を除く): 54177120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 27, 30, 32, 36, 39, 40, 45, 48, 52, 54, 60, 65, 72, 78, 80, 90, 96, 104, 108, 117, 120, 130, 135, 144, 156, 160, 180, 195, 208, 216, 234, 240, 260, 270, 288, 312, 347, 351, 360, 390, 416, 432, 468, 480, 520, 540, 585, 624, 694, 702, 720, 780, 864, 936, 1040, 1041, 1080, 1170, 1248, 1388, 1404, 1440, 1560, 1735, 1755, 1872, 2080, 2082, 2160, 2340, 2776, 2808, 3120, 3123, 3470, 3510, 3744, 4164, 4320, 4511, 4680, 5205, 5552, 5616, 6240, 6246, 6940, 7020, 8328, 9022, 9360, 9369, 10410, 11104, 11232, 12492, 13533, 13880, 14040, 15615, 16656, 18044, 18720, 18738, 20820, 22555, 24984, 27066, 27760, 28080, 31230, 33312, 36088, 37476, 40599, 41640, 45110, 46845, 49968, 54132, 55520, 56160, 62460, 67665, 72176, 74952, 81198, 83280, 90220, 93690, 99936, 108264, 121797, 124920, 135330, 144352, 149904, 162396, 166560, 180440, 187380, 202995, 216528, 243594, 249840, 270660, 299808, 324792, 360880, 374760, 405990, 433056, 487188, 499680, 541320, 608985, 649584, 721760, 749520, 811980, 974376, 1082640, 1217970, 1299168, 1499040, 1623960, 1948752, 2165280, 2435940, 3247920, 3897504, 4871880, 6495840, 9743760, 19487520]

約数ペア:

[(1, 19487520), (2, 9743760), (3, 6495840), (4, 4871880), (5, 3897504), (6, 3247920), (8, 2435940), (9, 2165280), (10, 1948752), (12, 1623960), (13, 1499040), (15, 1299168), (16, 1217970), (18, 1082640), (20, 974376), (24, 811980), (26, 749520), (27, 721760), (30, 649584), (32, 608985), (36, 541320), (39, 499680), (40, 487188), (45, 433056), (48, 405990), (52, 374760), (54, 360880), (60, 324792), (65, 299808), (72, 270660), (78, 249840), (80, 243594), (90, 216528), (96, 202995), (104, 187380), (108, 180440), (117, 166560), (120, 162396), (130, 149904), (135, 144352), (144, 135330), (156, 124920), (160, 121797), (180, 108264), (195, 99936), (208, 93690), (216, 90220), (234, 83280), (240, 81198), (260, 74952), (270, 72176), (288, 67665), (312, 62460), (347, 56160), (351, 55520), (360, 54132), (390, 49968), (416, 46845), (432, 45110), (468, 41640), (480, 40599), (520, 37476), (540, 36088), (585, 33312), (624, 31230), (694, 28080), (702, 27760), (720, 27066), (780, 24984), (864, 22555), (936, 20820), (1040, 18738), (1041, 18720), (1080, 18044), (1170, 16656), (1248, 15615), (1388, 14040), (1404, 13880), (1440, 13533), (1560, 12492), (1735, 11232), (1755, 11104), (1872, 10410), (2080, 9369), (2082, 9360), (2160, 9022), (2340, 8328), (2776, 7020), (2808, 6940), (3120, 6246), (3123, 6240), (3470, 5616), (3510, 5552), (3744, 5205), (4164, 4680), (4320, 4511)]