20655810

素因数分解:

$2^1\times 3^4\times 5^1\times 7^1\times {\mathrm{3643}}^1$

素因数の和:3669

約数の個数: 80

約数和(自身を含む): 63493056

約数和(自身を除く): 42837246

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 81, 90, 105, 126, 135, 162, 189, 210, 270, 315, 378, 405, 567, 630, 810, 945, 1134, 1890, 2835, 3643, 5670, 7286, 10929, 18215, 21858, 25501, 32787, 36430, 51002, 54645, 65574, 76503, 98361, 109290, 127505, 153006, 163935, 196722, 229509, 255010, 295083, 327870, 382515, 459018, 491805, 590166, 688527, 765030, 983610, 1147545, 1377054, 1475415, 2065581, 2295090, 2950830, 3442635, 4131162, 6885270, 10327905, 20655810]

約数ペア:

[(1, 20655810), (2, 10327905), (3, 6885270), (5, 4131162), (6, 3442635), (7, 2950830), (9, 2295090), (10, 2065581), (14, 1475415), (15, 1377054), (18, 1147545), (21, 983610), (27, 765030), (30, 688527), (35, 590166), (42, 491805), (45, 459018), (54, 382515), (63, 327870), (70, 295083), (81, 255010), (90, 229509), (105, 196722), (126, 163935), (135, 153006), (162, 127505), (189, 109290), (210, 98361), (270, 76503), (315, 65574), (378, 54645), (405, 51002), (567, 36430), (630, 32787), (810, 25501), (945, 21858), (1134, 18215), (1890, 10929), (2835, 7286), (3643, 5670)]