21278160

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{9851}}^1$

素因数の和:9873

約数の個数: 80

約数和(自身を含む): 73298880

約数和(自身を除く): 52020720

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, 72, 80, 90, 108, 120, 135, 144, 180, 216, 240, 270, 360, 432, 540, 720, 1080, 2160, 9851, 19702, 29553, 39404, 49255, 59106, 78808, 88659, 98510, 118212, 147765, 157616, 177318, 197020, 236424, 265977, 295530, 354636, 394040, 443295, 472848, 531954, 591060, 709272, 788080, 886590, 1063908, 1182120, 1329885, 1418544, 1773180, 2127816, 2364240, 2659770, 3546360, 4255632, 5319540, 7092720, 10639080, 21278160]

約数ペア:

[(1, 21278160), (2, 10639080), (3, 7092720), (4, 5319540), (5, 4255632), (6, 3546360), (8, 2659770), (9, 2364240), (10, 2127816), (12, 1773180), (15, 1418544), (16, 1329885), (18, 1182120), (20, 1063908), (24, 886590), (27, 788080), (30, 709272), (36, 591060), (40, 531954), (45, 472848), (48, 443295), (54, 394040), (60, 354636), (72, 295530), (80, 265977), (90, 236424), (108, 197020), (120, 177318), (135, 157616), (144, 147765), (180, 118212), (216, 98510), (240, 88659), (270, 78808), (360, 59106), (432, 49255), (540, 39404), (720, 29553), (1080, 19702), (2160, 9851)]