2020397680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{189887}}^1$

素因数の和:189926

約数の個数: 80

約数和(自身を含む): 5651066880

約数和(自身を除く): 3630669200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 38, 40, 56, 70, 76, 80, 95, 112, 133, 140, 152, 190, 266, 280, 304, 380, 532, 560, 665, 760, 1064, 1330, 1520, 2128, 2660, 5320, 10640, 189887, 379774, 759548, 949435, 1329209, 1519096, 1898870, 2658418, 3038192, 3607853, 3797740, 5316836, 6646045, 7215706, 7595480, 10633672, 13292090, 14431412, 15190960, 18039265, 21267344, 25254971, 26584180, 28862824, 36078530, 50509942, 53168360, 57725648, 72157060, 101019884, 106336720, 126274855, 144314120, 202039768, 252549710, 288628240, 404079536, 505099420, 1010198840, 2020397680]

約数ペア:

[(1, 2020397680), (2, 1010198840), (4, 505099420), (5, 404079536), (7, 288628240), (8, 252549710), (10, 202039768), (14, 144314120), (16, 126274855), (19, 106336720), (20, 101019884), (28, 72157060), (35, 57725648), (38, 53168360), (40, 50509942), (56, 36078530), (70, 28862824), (76, 26584180), (80, 25254971), (95, 21267344), (112, 18039265), (133, 15190960), (140, 14431412), (152, 13292090), (190, 10633672), (266, 7595480), (280, 7215706), (304, 6646045), (380, 5316836), (532, 3797740), (560, 3607853), (665, 3038192), (760, 2658418), (1064, 1898870), (1330, 1519096), (1520, 1329209), (2128, 949435), (2660, 759548), (5320, 379774), (10640, 189887)]