257946425

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{251}}^1$

素因数の和:410

約数の個数: 48

約数和(自身を含む): 363351744

約数和(自身を除く): 105405319

約数列:

[1, 5, 11, 25, 37, 55, 101, 185, 251, 275, 407, 505, 925, 1111, 1255, 2035, 2525, 2761, 3737, 5555, 6275, 9287, 10175, 13805, 18685, 25351, 27775, 41107, 46435, 69025, 93425, 102157, 126755, 205535, 232175, 278861, 510785, 633775, 937987, 1027675, 1394305, 2553925, 4689935, 6971525, 10317857, 23449675, 51589285, 257946425]

約数ペア:

[(1, 257946425), (5, 51589285), (11, 23449675), (25, 10317857), (37, 6971525), (55, 4689935), (101, 2553925), (185, 1394305), (251, 1027675), (275, 937987), (407, 633775), (505, 510785), (925, 278861), (1111, 232175), (1255, 205535), (2035, 126755), (2525, 102157), (2761, 93425), (3737, 69025), (5555, 46435), (6275, 41107), (9287, 27775), (10175, 25351), (13805, 18685)]