208489424

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{293}}^1\times {\mathrm{311}}^1$

素因数の和:636

約数の個数: 80

約数和(自身を含む): 477719424

約数和(自身を除く): 269230000

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 44, 52, 88, 104, 143, 176, 208, 286, 293, 311, 572, 586, 622, 1144, 1172, 1244, 2288, 2344, 2488, 3223, 3421, 3809, 4043, 4688, 4976, 6446, 6842, 7618, 8086, 12892, 13684, 15236, 16172, 25784, 27368, 30472, 32344, 41899, 44473, 51568, 54736, 60944, 64688, 83798, 88946, 91123, 167596, 177892, 182246, 335192, 355784, 364492, 670384, 711568, 728984, 1002353, 1184599, 1457968, 2004706, 2369198, 4009412, 4738396, 8018824, 9476792, 13030589, 16037648, 18953584, 26061178, 52122356, 104244712, 208489424]

約数ペア:

[(1, 208489424), (2, 104244712), (4, 52122356), (8, 26061178), (11, 18953584), (13, 16037648), (16, 13030589), (22, 9476792), (26, 8018824), (44, 4738396), (52, 4009412), (88, 2369198), (104, 2004706), (143, 1457968), (176, 1184599), (208, 1002353), (286, 728984), (293, 711568), (311, 670384), (572, 364492), (586, 355784), (622, 335192), (1144, 182246), (1172, 177892), (1244, 167596), (2288, 91123), (2344, 88946), (2488, 83798), (3223, 64688), (3421, 60944), (3809, 54736), (4043, 51568), (4688, 44473), (4976, 41899), (6446, 32344), (6842, 30472), (7618, 27368), (8086, 25784), (12892, 16172), (13684, 15236)]