20491363984

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{827867}}^1$

素因数の和:827912

約数の個数: 80

約数和(自身を含む): 51738438528

約数和(自身を除く): 31247074544

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 17, 26, 28, 34, 52, 56, 68, 91, 104, 112, 119, 136, 182, 208, 221, 238, 272, 364, 442, 476, 728, 884, 952, 1456, 1547, 1768, 1904, 3094, 3536, 6188, 12376, 24752, 827867, 1655734, 3311468, 5795069, 6622936, 10762271, 11590138, 13245872, 14073739, 21524542, 23180276, 28147478, 43049084, 46360552, 56294956, 75335897, 86098168, 92721104, 98516173, 112589912, 150671794, 172196336, 182958607, 197032346, 225179824, 301343588, 365917214, 394064692, 602687176, 731834428, 788129384, 1205374352, 1280710249, 1463668856, 1576258768, 2561420498, 2927337712, 5122840996, 10245681992, 20491363984]

約数ペア:

[(1, 20491363984), (2, 10245681992), (4, 5122840996), (7, 2927337712), (8, 2561420498), (13, 1576258768), (14, 1463668856), (16, 1280710249), (17, 1205374352), (26, 788129384), (28, 731834428), (34, 602687176), (52, 394064692), (56, 365917214), (68, 301343588), (91, 225179824), (104, 197032346), (112, 182958607), (119, 172196336), (136, 150671794), (182, 112589912), (208, 98516173), (221, 92721104), (238, 86098168), (272, 75335897), (364, 56294956), (442, 46360552), (476, 43049084), (728, 28147478), (884, 23180276), (952, 21524542), (1456, 14073739), (1547, 13245872), (1768, 11590138), (1904, 10762271), (3094, 6622936), (3536, 5795069), (6188, 3311468), (12376, 1655734), (24752, 827867)]