20216284816

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2087}}^1\times {\mathrm{6653}}^1$

素因数の和:8768

約数の個数: 80

約数和(自身を含む): 48238412544

約数和(自身を除く): 28022127728

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 2087, 4174, 6653, 8348, 13306, 14609, 16696, 26612, 27131, 29218, 33392, 46571, 53224, 54262, 58436, 86489, 93142, 106448, 108524, 116872, 172978, 186284, 189917, 217048, 233744, 345956, 372568, 379834, 434096, 605423, 691912, 745136, 759668, 1210846, 1383824, 1519336, 2421692, 3038672, 4843384, 9686768, 13884811, 27769622, 55539244, 97193677, 111078488, 180502543, 194387354, 222156976, 361005086, 388774708, 722010172, 777549416, 1263517801, 1444020344, 1555098832, 2527035602, 2888040688, 5054071204, 10108142408, 20216284816]

約数ペア:

[(1, 20216284816), (2, 10108142408), (4, 5054071204), (7, 2888040688), (8, 2527035602), (13, 1555098832), (14, 1444020344), (16, 1263517801), (26, 777549416), (28, 722010172), (52, 388774708), (56, 361005086), (91, 222156976), (104, 194387354), (112, 180502543), (182, 111078488), (208, 97193677), (364, 55539244), (728, 27769622), (1456, 13884811), (2087, 9686768), (4174, 4843384), (6653, 3038672), (8348, 2421692), (13306, 1519336), (14609, 1383824), (16696, 1210846), (26612, 759668), (27131, 745136), (29218, 691912), (33392, 605423), (46571, 434096), (53224, 379834), (54262, 372568), (58436, 345956), (86489, 233744), (93142, 217048), (106448, 189917), (108524, 186284), (116872, 172978)]