890758825

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{199}}^1\times {\mathrm{397}}^1$

素因数の和:658

約数の個数: 48

約数和(自身を含む): 1243670400

約数和(自身を除く): 352911575

約数列:

[1, 5, 11, 25, 41, 55, 199, 205, 275, 397, 451, 995, 1025, 1985, 2189, 2255, 4367, 4975, 8159, 9925, 10945, 11275, 16277, 21835, 40795, 54725, 79003, 81385, 89749, 109175, 179047, 203975, 395015, 406925, 448745, 869033, 895235, 1975075, 2243725, 3239123, 4345165, 4476175, 16195615, 21725825, 35630353, 80978075, 178151765, 890758825]

約数ペア:

[(1, 890758825), (5, 178151765), (11, 80978075), (25, 35630353), (41, 21725825), (55, 16195615), (199, 4476175), (205, 4345165), (275, 3239123), (397, 2243725), (451, 1975075), (995, 895235), (1025, 869033), (1985, 448745), (2189, 406925), (2255, 395015), (4367, 203975), (4975, 179047), (8159, 109175), (9925, 89749), (10945, 81385), (11275, 79003), (16277, 54725), (21835, 40795)]