642829825

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1\times {\mathrm{251}}^1$

素因数の和:478

約数の個数: 48

約数和(自身を含む): 892442880

約数和(自身を除く): 249613055

約数列:

[1, 5, 11, 25, 55, 67, 139, 251, 275, 335, 695, 737, 1255, 1529, 1675, 2761, 3475, 3685, 6275, 7645, 9313, 13805, 16817, 18425, 34889, 38225, 46565, 69025, 84085, 102443, 174445, 184987, 232825, 383779, 420425, 512215, 872225, 924935, 1918895, 2337563, 2561075, 4624675, 9594475, 11687815, 25713193, 58439075, 128565965, 642829825]

約数ペア:

[(1, 642829825), (5, 128565965), (11, 58439075), (25, 25713193), (55, 11687815), (67, 9594475), (139, 4624675), (251, 2561075), (275, 2337563), (335, 1918895), (695, 924935), (737, 872225), (1255, 512215), (1529, 420425), (1675, 383779), (2761, 232825), (3475, 184987), (3685, 174445), (6275, 102443), (7645, 84085), (9313, 69025), (13805, 46565), (16817, 38225), (18425, 34889)]