19895760

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{151}}^1$

素因数の和:234

約数の個数: 160

約数和(自身を含む): 70114560

約数和(自身を除く): 50218800

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 61, 72, 80, 90, 108, 120, 122, 135, 144, 151, 180, 183, 216, 240, 244, 270, 302, 305, 360, 366, 432, 453, 488, 540, 549, 604, 610, 720, 732, 755, 906, 915, 976, 1080, 1098, 1208, 1220, 1359, 1464, 1510, 1647, 1812, 1830, 2160, 2196, 2265, 2416, 2440, 2718, 2745, 2928, 3020, 3294, 3624, 3660, 4077, 4392, 4530, 4880, 5436, 5490, 6040, 6588, 6795, 7248, 7320, 8154, 8235, 8784, 9060, 9211, 10872, 10980, 12080, 13176, 13590, 14640, 16308, 16470, 18120, 18422, 20385, 21744, 21960, 26352, 27180, 27633, 32616, 32940, 36240, 36844, 40770, 43920, 46055, 54360, 55266, 65232, 65880, 73688, 81540, 82899, 92110, 108720, 110532, 131760, 138165, 147376, 163080, 165798, 184220, 221064, 248697, 276330, 326160, 331596, 368440, 414495, 442128, 497394, 552660, 663192, 736880, 828990, 994788, 1105320, 1243485, 1326384, 1657980, 1989576, 2210640, 2486970, 3315960, 3979152, 4973940, 6631920, 9947880, 19895760]

約数ペア:

[(1, 19895760), (2, 9947880), (3, 6631920), (4, 4973940), (5, 3979152), (6, 3315960), (8, 2486970), (9, 2210640), (10, 1989576), (12, 1657980), (15, 1326384), (16, 1243485), (18, 1105320), (20, 994788), (24, 828990), (27, 736880), (30, 663192), (36, 552660), (40, 497394), (45, 442128), (48, 414495), (54, 368440), (60, 331596), (61, 326160), (72, 276330), (80, 248697), (90, 221064), (108, 184220), (120, 165798), (122, 163080), (135, 147376), (144, 138165), (151, 131760), (180, 110532), (183, 108720), (216, 92110), (240, 82899), (244, 81540), (270, 73688), (302, 65880), (305, 65232), (360, 55266), (366, 54360), (432, 46055), (453, 43920), (488, 40770), (540, 36844), (549, 36240), (604, 32940), (610, 32616), (720, 27633), (732, 27180), (755, 26352), (906, 21960), (915, 21744), (976, 20385), (1080, 18422), (1098, 18120), (1208, 16470), (1220, 16308), (1359, 14640), (1464, 13590), (1510, 13176), (1647, 12080), (1812, 10980), (1830, 10872), (2160, 9211), (2196, 9060), (2265, 8784), (2416, 8235), (2440, 8154), (2718, 7320), (2745, 7248), (2928, 6795), (3020, 6588), (3294, 6040), (3624, 5490), (3660, 5436), (4077, 4880), (4392, 4530)]