80980925

素因数分解:

$5^2\times {\mathrm{79}}^1\times {\mathrm{131}}^1\times {\mathrm{313}}^1$

素因数の和:533

約数の個数: 24

約数和(自身を含む): 102791040

約数和(自身を除く): 21810115

約数列:

[1, 5, 25, 79, 131, 313, 395, 655, 1565, 1975, 3275, 7825, 10349, 24727, 41003, 51745, 123635, 205015, 258725, 618175, 1025075, 3239237, 16196185, 80980925]

約数ペア:

[(1, 80980925), (5, 16196185), (25, 3239237), (79, 1025075), (131, 618175), (313, 258725), (395, 205015), (655, 123635), (1565, 51745), (1975, 41003), (3275, 24727), (7825, 10349)]