25369180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{661}}^1$

素因数の和:790

約数の個数: 48

約数和(自身を含む): 56720160

約数和(自身を除く): 31350980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 101, 190, 202, 380, 404, 505, 661, 1010, 1322, 1919, 2020, 2644, 3305, 3838, 6610, 7676, 9595, 12559, 13220, 19190, 25118, 38380, 50236, 62795, 66761, 125590, 133522, 251180, 267044, 333805, 667610, 1268459, 1335220, 2536918, 5073836, 6342295, 12684590, 25369180]

約数ペア:

[(1, 25369180), (2, 12684590), (4, 6342295), (5, 5073836), (10, 2536918), (19, 1335220), (20, 1268459), (38, 667610), (76, 333805), (95, 267044), (101, 251180), (190, 133522), (202, 125590), (380, 66761), (404, 62795), (505, 50236), (661, 38380), (1010, 25118), (1322, 19190), (1919, 13220), (2020, 12559), (2644, 9595), (3305, 7676), (3838, 6610)]