261804960

素因数分解:

$2^5\times 3^4\times 5^1\times {\mathrm{20201}}^1$

素因数の和:20228

約数の個数: 120

約数和(自身を含む): 923999076

約数和(自身を除く): 662194116

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, 81, 90, 96, 108, 120, 135, 144, 160, 162, 180, 216, 240, 270, 288, 324, 360, 405, 432, 480, 540, 648, 720, 810, 864, 1080, 1296, 1440, 1620, 2160, 2592, 3240, 4320, 6480, 12960, 20201, 40402, 60603, 80804, 101005, 121206, 161608, 181809, 202010, 242412, 303015, 323216, 363618, 404020, 484824, 545427, 606030, 646432, 727236, 808040, 909045, 969648, 1090854, 1212060, 1454472, 1616080, 1636281, 1818090, 1939296, 2181708, 2424120, 2727135, 2908944, 3232160, 3272562, 3636180, 4363416, 4848240, 5454270, 5817888, 6545124, 7272360, 8181405, 8726832, 9696480, 10908540, 13090248, 14544720, 16362810, 17453664, 21817080, 26180496, 29089440, 32725620, 43634160, 52360992, 65451240, 87268320, 130902480, 261804960]

約数ペア:

[(1, 261804960), (2, 130902480), (3, 87268320), (4, 65451240), (5, 52360992), (6, 43634160), (8, 32725620), (9, 29089440), (10, 26180496), (12, 21817080), (15, 17453664), (16, 16362810), (18, 14544720), (20, 13090248), (24, 10908540), (27, 9696480), (30, 8726832), (32, 8181405), (36, 7272360), (40, 6545124), (45, 5817888), (48, 5454270), (54, 4848240), (60, 4363416), (72, 3636180), (80, 3272562), (81, 3232160), (90, 2908944), (96, 2727135), (108, 2424120), (120, 2181708), (135, 1939296), (144, 1818090), (160, 1636281), (162, 1616080), (180, 1454472), (216, 1212060), (240, 1090854), (270, 969648), (288, 909045), (324, 808040), (360, 727236), (405, 646432), (432, 606030), (480, 545427), (540, 484824), (648, 404020), (720, 363618), (810, 323216), (864, 303015), (1080, 242412), (1296, 202010), (1440, 181809), (1620, 161608), (2160, 121206), (2592, 101005), (3240, 80804), (4320, 60603), (6480, 40402), (12960, 20201)]