2019960775

素因数分解:

$5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{19597}}^1$

素因数の和:19664

約数の個数: 48

約数和(自身を含む): 3110594560

約数和(自身を除く): 1090633785

約数列:

[1, 5, 7, 19, 25, 31, 35, 95, 133, 155, 175, 217, 475, 589, 665, 775, 1085, 2945, 3325, 4123, 5425, 14725, 19597, 20615, 97985, 103075, 137179, 372343, 489925, 607507, 685895, 1861715, 2606401, 3037535, 3429475, 4252549, 9308575, 11542633, 13032005, 15187675, 21262745, 57713165, 65160025, 80798431, 106313725, 288565825, 403992155, 2019960775]

約数ペア:

[(1, 2019960775), (5, 403992155), (7, 288565825), (19, 106313725), (25, 80798431), (31, 65160025), (35, 57713165), (95, 21262745), (133, 15187675), (155, 13032005), (175, 11542633), (217, 9308575), (475, 4252549), (589, 3429475), (665, 3037535), (775, 2606401), (1085, 1861715), (2945, 685895), (3325, 607507), (4123, 489925), (5425, 372343), (14725, 137179), (19597, 103075), (20615, 97985)]