20684826368

素因数分解:

$2^8\times {\mathrm{19}}^2\times {\mathrm{223823}}^1$

素因数の和:223877

約数の個数: 54

約数和(自身を含む): 43576518384

約数和(自身を除く): 22891692016

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 152, 256, 304, 361, 608, 722, 1216, 1444, 2432, 2888, 4864, 5776, 11552, 23104, 46208, 92416, 223823, 447646, 895292, 1790584, 3581168, 4252637, 7162336, 8505274, 14324672, 17010548, 28649344, 34021096, 57298688, 68042192, 80800103, 136084384, 161600206, 272168768, 323200412, 544337536, 646400824, 1088675072, 1292801648, 2585603296, 5171206592, 10342413184, 20684826368]

約数ペア:

[(1, 20684826368), (2, 10342413184), (4, 5171206592), (8, 2585603296), (16, 1292801648), (19, 1088675072), (32, 646400824), (38, 544337536), (64, 323200412), (76, 272168768), (128, 161600206), (152, 136084384), (256, 80800103), (304, 68042192), (361, 57298688), (608, 34021096), (722, 28649344), (1216, 17010548), (1444, 14324672), (2432, 8505274), (2888, 7162336), (4864, 4252637), (5776, 3581168), (11552, 1790584), (23104, 895292), (46208, 447646), (92416, 223823)]