20809785555

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{49891}}^1$

素因数の和:49969

約数の個数: 96

約数和(自身を含む): 41842225152

約数和(自身を除く): 21032439597

約数列:

[1, 3, 5, 9, 13, 15, 23, 31, 39, 45, 65, 69, 93, 115, 117, 155, 195, 207, 279, 299, 345, 403, 465, 585, 713, 897, 1035, 1209, 1395, 1495, 2015, 2139, 2691, 3565, 3627, 4485, 6045, 6417, 9269, 10695, 13455, 18135, 27807, 32085, 46345, 49891, 83421, 139035, 149673, 249455, 417105, 449019, 648583, 748365, 1147493, 1546621, 1945749, 2245095, 3242915, 3442479, 4639863, 5737465, 5837247, 7733105, 9728745, 10327437, 13919589, 14917409, 17212395, 20106073, 23199315, 29186235, 35572283, 44752227, 51637185, 60318219, 69597945, 74587045, 100530365, 106716849, 134256681, 177861415, 180954657, 223761135, 301591095, 320150547, 462439679, 533584245, 671283405, 904773285, 1387319037, 1600752735, 2312198395, 4161957111, 6936595185, 20809785555]

約数ペア:

[(1, 20809785555), (3, 6936595185), (5, 4161957111), (9, 2312198395), (13, 1600752735), (15, 1387319037), (23, 904773285), (31, 671283405), (39, 533584245), (45, 462439679), (65, 320150547), (69, 301591095), (93, 223761135), (115, 180954657), (117, 177861415), (155, 134256681), (195, 106716849), (207, 100530365), (279, 74587045), (299, 69597945), (345, 60318219), (403, 51637185), (465, 44752227), (585, 35572283), (713, 29186235), (897, 23199315), (1035, 20106073), (1209, 17212395), (1395, 14917409), (1495, 13919589), (2015, 10327437), (2139, 9728745), (2691, 7733105), (3565, 5837247), (3627, 5737465), (4485, 4639863), (6045, 3442479), (6417, 3242915), (9269, 2245095), (10695, 1945749), (13455, 1546621), (18135, 1147493), (27807, 748365), (32085, 648583), (46345, 449019), (49891, 417105), (83421, 249455), (139035, 149673)]