20608768

素因数分解:

$2^8\times {\mathrm{19}}^2\times {\mathrm{223}}^1$

素因数の和:277

約数の個数: 54

約数和(自身を含む): 43610784

約数和(自身を除く): 23002016

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 152, 223, 256, 304, 361, 446, 608, 722, 892, 1216, 1444, 1784, 2432, 2888, 3568, 4237, 4864, 5776, 7136, 8474, 11552, 14272, 16948, 23104, 28544, 33896, 46208, 57088, 67792, 80503, 92416, 135584, 161006, 271168, 322012, 542336, 644024, 1084672, 1288048, 2576096, 5152192, 10304384, 20608768]

約数ペア:

[(1, 20608768), (2, 10304384), (4, 5152192), (8, 2576096), (16, 1288048), (19, 1084672), (32, 644024), (38, 542336), (64, 322012), (76, 271168), (128, 161006), (152, 135584), (223, 92416), (256, 80503), (304, 67792), (361, 57088), (446, 46208), (608, 33896), (722, 28544), (892, 23104), (1216, 16948), (1444, 14272), (1784, 11552), (2432, 8474), (2888, 7136), (3568, 5776), (4237, 4864)]