81516960

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{8087}}^1$

素因数の和:8115

約数の個数: 144

約数和(自身を含む): 317955456

約数和(自身を除く): 236438496

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 210, 224, 240, 252, 280, 288, 315, 336, 360, 420, 480, 504, 560, 630, 672, 720, 840, 1008, 1120, 1260, 1440, 1680, 2016, 2520, 3360, 5040, 8087, 10080, 16174, 24261, 32348, 40435, 48522, 56609, 64696, 72783, 80870, 97044, 113218, 121305, 129392, 145566, 161740, 169827, 194088, 226436, 242610, 258784, 283045, 291132, 323480, 339654, 363915, 388176, 452872, 485220, 509481, 566090, 582264, 646960, 679308, 727830, 776352, 849135, 905744, 970440, 1018962, 1132180, 1164528, 1293920, 1358616, 1455660, 1698270, 1811488, 1940880, 2037924, 2264360, 2329056, 2547405, 2717232, 2911320, 3396540, 3881760, 4075848, 4528720, 5094810, 5434464, 5822640, 6793080, 8151696, 9057440, 10189620, 11645280, 13586160, 16303392, 20379240, 27172320, 40758480, 81516960]

約数ペア:

[(1, 81516960), (2, 40758480), (3, 27172320), (4, 20379240), (5, 16303392), (6, 13586160), (7, 11645280), (8, 10189620), (9, 9057440), (10, 8151696), (12, 6793080), (14, 5822640), (15, 5434464), (16, 5094810), (18, 4528720), (20, 4075848), (21, 3881760), (24, 3396540), (28, 2911320), (30, 2717232), (32, 2547405), (35, 2329056), (36, 2264360), (40, 2037924), (42, 1940880), (45, 1811488), (48, 1698270), (56, 1455660), (60, 1358616), (63, 1293920), (70, 1164528), (72, 1132180), (80, 1018962), (84, 970440), (90, 905744), (96, 849135), (105, 776352), (112, 727830), (120, 679308), (126, 646960), (140, 582264), (144, 566090), (160, 509481), (168, 485220), (180, 452872), (210, 388176), (224, 363915), (240, 339654), (252, 323480), (280, 291132), (288, 283045), (315, 258784), (336, 242610), (360, 226436), (420, 194088), (480, 169827), (504, 161740), (560, 145566), (630, 129392), (672, 121305), (720, 113218), (840, 97044), (1008, 80870), (1120, 72783), (1260, 64696), (1440, 56609), (1680, 48522), (2016, 40435), (2520, 32348), (3360, 24261), (5040, 16174), (8087, 10080)]