2019478840

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{26309}}^1$

素因数の和:26440

約数の個数: 64

約数和(自身を含む): 4830516000

約数和(自身を除く): 2811037160

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 101, 152, 190, 202, 380, 404, 505, 760, 808, 1010, 1919, 2020, 3838, 4040, 7676, 9595, 15352, 19190, 26309, 38380, 52618, 76760, 105236, 131545, 210472, 263090, 499871, 526180, 999742, 1052360, 1999484, 2499355, 2657209, 3998968, 4998710, 5314418, 9997420, 10628836, 13286045, 19994840, 21257672, 26572090, 50486971, 53144180, 100973942, 106288360, 201947884, 252434855, 403895768, 504869710, 1009739420, 2019478840]

約数ペア:

[(1, 2019478840), (2, 1009739420), (4, 504869710), (5, 403895768), (8, 252434855), (10, 201947884), (19, 106288360), (20, 100973942), (38, 53144180), (40, 50486971), (76, 26572090), (95, 21257672), (101, 19994840), (152, 13286045), (190, 10628836), (202, 9997420), (380, 5314418), (404, 4998710), (505, 3998968), (760, 2657209), (808, 2499355), (1010, 1999484), (1919, 1052360), (2020, 999742), (3838, 526180), (4040, 499871), (7676, 263090), (9595, 210472), (15352, 131545), (19190, 105236), (26309, 76760), (38380, 52618)]