20394720

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{4721}}^1$

素因数の和:4745

約数の個数: 96

約数和(自身を含む): 71396640

約数和(自身を除く): 51001920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 72, 80, 90, 96, 108, 120, 135, 144, 160, 180, 216, 240, 270, 288, 360, 432, 480, 540, 720, 864, 1080, 1440, 2160, 4320, 4721, 9442, 14163, 18884, 23605, 28326, 37768, 42489, 47210, 56652, 70815, 75536, 84978, 94420, 113304, 127467, 141630, 151072, 169956, 188840, 212445, 226608, 254934, 283260, 339912, 377680, 424890, 453216, 509868, 566520, 637335, 679824, 755360, 849780, 1019736, 1133040, 1274670, 1359648, 1699560, 2039472, 2266080, 2549340, 3399120, 4078944, 5098680, 6798240, 10197360, 20394720]

約数ペア:

[(1, 20394720), (2, 10197360), (3, 6798240), (4, 5098680), (5, 4078944), (6, 3399120), (8, 2549340), (9, 2266080), (10, 2039472), (12, 1699560), (15, 1359648), (16, 1274670), (18, 1133040), (20, 1019736), (24, 849780), (27, 755360), (30, 679824), (32, 637335), (36, 566520), (40, 509868), (45, 453216), (48, 424890), (54, 377680), (60, 339912), (72, 283260), (80, 254934), (90, 226608), (96, 212445), (108, 188840), (120, 169956), (135, 151072), (144, 141630), (160, 127467), (180, 113304), (216, 94420), (240, 84978), (270, 75536), (288, 70815), (360, 56652), (432, 47210), (480, 42489), (540, 37768), (720, 28326), (864, 23605), (1080, 18884), (1440, 14163), (2160, 9442), (4320, 4721)]