521309075

素因数分解:

$5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{739}}^1$

素因数の和:924

約数の個数: 48

約数和(自身を含む): 770784000

約数和(自身を除く): 249474925

約数列:

[1, 5, 7, 25, 29, 35, 139, 145, 175, 203, 695, 725, 739, 973, 1015, 3475, 3695, 4031, 4865, 5075, 5173, 18475, 20155, 21431, 24325, 25865, 28217, 100775, 102721, 107155, 129325, 141085, 150017, 513605, 535775, 705425, 719047, 750085, 2568025, 2978909, 3595235, 3750425, 14894545, 17976175, 20852363, 74472725, 104261815, 521309075]

約数ペア:

[(1, 521309075), (5, 104261815), (7, 74472725), (25, 20852363), (29, 17976175), (35, 14894545), (139, 3750425), (145, 3595235), (175, 2978909), (203, 2568025), (695, 750085), (725, 719047), (739, 705425), (973, 535775), (1015, 513605), (3475, 150017), (3695, 141085), (4031, 129325), (4865, 107155), (5075, 102721), (5173, 100775), (18475, 28217), (20155, 25865), (21431, 24325)]