20180976800

素因数分解:

$2^5\times 5^2\times {\mathrm{137}}^1\times {\mathrm{184133}}^1$

素因数の和:184290

約数の個数: 72

約数和(自身を含む): 49626690876

約数和(自身を除く): 29445714076

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 137, 160, 200, 274, 400, 548, 685, 800, 1096, 1370, 2192, 2740, 3425, 4384, 5480, 6850, 10960, 13700, 21920, 27400, 54800, 109600, 184133, 368266, 736532, 920665, 1473064, 1841330, 2946128, 3682660, 4603325, 5892256, 7365320, 9206650, 14730640, 18413300, 25226221, 29461280, 36826600, 50452442, 73653200, 100904884, 126131105, 147306400, 201809768, 252262210, 403619536, 504524420, 630655525, 807239072, 1009048840, 1261311050, 2018097680, 2522622100, 4036195360, 5045244200, 10090488400, 20180976800]

約数ペア:

[(1, 20180976800), (2, 10090488400), (4, 5045244200), (5, 4036195360), (8, 2522622100), (10, 2018097680), (16, 1261311050), (20, 1009048840), (25, 807239072), (32, 630655525), (40, 504524420), (50, 403619536), (80, 252262210), (100, 201809768), (137, 147306400), (160, 126131105), (200, 100904884), (274, 73653200), (400, 50452442), (548, 36826600), (685, 29461280), (800, 25226221), (1096, 18413300), (1370, 14730640), (2192, 9206650), (2740, 7365320), (3425, 5892256), (4384, 4603325), (5480, 3682660), (6850, 2946128), (10960, 1841330), (13700, 1473064), (21920, 920665), (27400, 736532), (54800, 368266), (109600, 184133)]