988019968

素因数分解:

$2^8\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{557}}^1$

素因数の和:640

約数の個数: 108

約数和(自身を含む): 2191570668

約数和(自身を除く): 1203550700

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 41, 52, 64, 82, 104, 128, 164, 169, 208, 256, 328, 338, 416, 533, 557, 656, 676, 832, 1066, 1114, 1312, 1352, 1664, 2132, 2228, 2624, 2704, 3328, 4264, 4456, 5248, 5408, 6929, 7241, 8528, 8912, 10496, 10816, 13858, 14482, 17056, 17824, 21632, 22837, 27716, 28964, 34112, 35648, 43264, 45674, 55432, 57928, 68224, 71296, 91348, 94133, 110864, 115856, 136448, 142592, 182696, 188266, 221728, 231712, 296881, 365392, 376532, 443456, 463424, 593762, 730784, 753064, 886912, 926848, 1187524, 1461568, 1506128, 1773824, 1853696, 2375048, 2923136, 3012256, 3859453, 4750096, 5846272, 6024512, 7718906, 9500192, 12049024, 15437812, 19000384, 24098048, 30875624, 38000768, 61751248, 76001536, 123502496, 247004992, 494009984, 988019968]

約数ペア:

[(1, 988019968), (2, 494009984), (4, 247004992), (8, 123502496), (13, 76001536), (16, 61751248), (26, 38000768), (32, 30875624), (41, 24098048), (52, 19000384), (64, 15437812), (82, 12049024), (104, 9500192), (128, 7718906), (164, 6024512), (169, 5846272), (208, 4750096), (256, 3859453), (328, 3012256), (338, 2923136), (416, 2375048), (533, 1853696), (557, 1773824), (656, 1506128), (676, 1461568), (832, 1187524), (1066, 926848), (1114, 886912), (1312, 753064), (1352, 730784), (1664, 593762), (2132, 463424), (2228, 443456), (2624, 376532), (2704, 365392), (3328, 296881), (4264, 231712), (4456, 221728), (5248, 188266), (5408, 182696), (6929, 142592), (7241, 136448), (8528, 115856), (8912, 110864), (10496, 94133), (10816, 91348), (13858, 71296), (14482, 68224), (17056, 57928), (17824, 55432), (21632, 45674), (22837, 43264), (27716, 35648), (28964, 34112)]