12740728

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1$

素因数の和:117

約数の個数: 128

約数和(自身を含む): 33707520

約数和(自身を除く): 20966792

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 22, 26, 28, 37, 43, 44, 52, 56, 74, 77, 86, 88, 91, 104, 143, 148, 154, 172, 182, 259, 286, 296, 301, 308, 344, 364, 407, 473, 481, 518, 559, 572, 602, 616, 728, 814, 946, 962, 1001, 1036, 1118, 1144, 1204, 1591, 1628, 1892, 1924, 2002, 2072, 2236, 2408, 2849, 3182, 3256, 3311, 3367, 3784, 3848, 3913, 4004, 4472, 5291, 5698, 6149, 6364, 6622, 6734, 7826, 8008, 10582, 11137, 11396, 12298, 12728, 13244, 13468, 15652, 17501, 20683, 21164, 22274, 22792, 24596, 26488, 26936, 31304, 35002, 37037, 41366, 42328, 43043, 44548, 49192, 70004, 74074, 82732, 86086, 89096, 122507, 140008, 144781, 148148, 165464, 172172, 227513, 245014, 289562, 296296, 344344, 455026, 490028, 579124, 910052, 980056, 1158248, 1592591, 1820104, 3185182, 6370364, 12740728]

約数ペア:

[(1, 12740728), (2, 6370364), (4, 3185182), (7, 1820104), (8, 1592591), (11, 1158248), (13, 980056), (14, 910052), (22, 579124), (26, 490028), (28, 455026), (37, 344344), (43, 296296), (44, 289562), (52, 245014), (56, 227513), (74, 172172), (77, 165464), (86, 148148), (88, 144781), (91, 140008), (104, 122507), (143, 89096), (148, 86086), (154, 82732), (172, 74074), (182, 70004), (259, 49192), (286, 44548), (296, 43043), (301, 42328), (308, 41366), (344, 37037), (364, 35002), (407, 31304), (473, 26936), (481, 26488), (518, 24596), (559, 22792), (572, 22274), (602, 21164), (616, 20683), (728, 17501), (814, 15652), (946, 13468), (962, 13244), (1001, 12728), (1036, 12298), (1118, 11396), (1144, 11137), (1204, 10582), (1591, 8008), (1628, 7826), (1892, 6734), (1924, 6622), (2002, 6364), (2072, 6149), (2236, 5698), (2408, 5291), (2849, 4472), (3182, 4004), (3256, 3913), (3311, 3848), (3367, 3784)]