20939160

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{547}}^1$

素因数の和:601

約数の個数: 128

約数和(自身を含む): 71020800

約数和(自身を除く): 50081640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 29, 30, 33, 40, 44, 55, 58, 60, 66, 87, 88, 110, 116, 120, 132, 145, 165, 174, 220, 232, 264, 290, 319, 330, 348, 435, 440, 547, 580, 638, 660, 696, 870, 957, 1094, 1160, 1276, 1320, 1595, 1641, 1740, 1914, 2188, 2552, 2735, 3190, 3282, 3480, 3828, 4376, 4785, 5470, 6017, 6380, 6564, 7656, 8205, 9570, 10940, 12034, 12760, 13128, 15863, 16410, 18051, 19140, 21880, 24068, 30085, 31726, 32820, 36102, 38280, 47589, 48136, 60170, 63452, 65640, 72204, 79315, 90255, 95178, 120340, 126904, 144408, 158630, 174493, 180510, 190356, 237945, 240680, 317260, 348986, 361020, 380712, 475890, 523479, 634520, 697972, 722040, 872465, 951780, 1046958, 1395944, 1744930, 1903560, 2093916, 2617395, 3489860, 4187832, 5234790, 6979720, 10469580, 20939160]

約数ペア:

[(1, 20939160), (2, 10469580), (3, 6979720), (4, 5234790), (5, 4187832), (6, 3489860), (8, 2617395), (10, 2093916), (11, 1903560), (12, 1744930), (15, 1395944), (20, 1046958), (22, 951780), (24, 872465), (29, 722040), (30, 697972), (33, 634520), (40, 523479), (44, 475890), (55, 380712), (58, 361020), (60, 348986), (66, 317260), (87, 240680), (88, 237945), (110, 190356), (116, 180510), (120, 174493), (132, 158630), (145, 144408), (165, 126904), (174, 120340), (220, 95178), (232, 90255), (264, 79315), (290, 72204), (319, 65640), (330, 63452), (348, 60170), (435, 48136), (440, 47589), (547, 38280), (580, 36102), (638, 32820), (660, 31726), (696, 30085), (870, 24068), (957, 21880), (1094, 19140), (1160, 18051), (1276, 16410), (1320, 15863), (1595, 13128), (1641, 12760), (1740, 12034), (1914, 10940), (2188, 9570), (2552, 8205), (2735, 7656), (3190, 6564), (3282, 6380), (3480, 6017), (3828, 5470), (4376, 4785)]