18530181436

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{443}}^1\times {\mathrm{1439}}^1$

素因数の和:1955

約数の個数: 72

約数和(自身を含む): 36036887040

約数和(自身を除く): 17506705604

約数列:

[1, 2, 4, 13, 26, 43, 52, 86, 169, 172, 338, 443, 559, 676, 886, 1118, 1439, 1772, 2236, 2878, 5756, 5759, 7267, 11518, 14534, 18707, 19049, 23036, 29068, 37414, 38098, 61877, 74828, 74867, 76196, 123754, 149734, 243191, 247508, 247637, 299468, 486382, 495274, 637477, 804401, 972764, 990548, 1274954, 1608802, 2549908, 3217604, 3219281, 6438562, 8287201, 10457213, 12877124, 16574402, 20914426, 27411511, 33148804, 41828852, 54823022, 107733613, 109646044, 215467226, 356349643, 430934452, 712699286, 1425398572, 4632545359, 9265090718, 18530181436]

約数ペア:

[(1, 18530181436), (2, 9265090718), (4, 4632545359), (13, 1425398572), (26, 712699286), (43, 430934452), (52, 356349643), (86, 215467226), (169, 109646044), (172, 107733613), (338, 54823022), (443, 41828852), (559, 33148804), (676, 27411511), (886, 20914426), (1118, 16574402), (1439, 12877124), (1772, 10457213), (2236, 8287201), (2878, 6438562), (5756, 3219281), (5759, 3217604), (7267, 2549908), (11518, 1608802), (14534, 1274954), (18707, 990548), (19049, 972764), (23036, 804401), (29068, 637477), (37414, 495274), (38098, 486382), (61877, 299468), (74828, 247637), (74867, 247508), (76196, 243191), (123754, 149734)]