20512552325

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{241}}^1\times {\mathrm{271}}^1\times {\mathrm{739}}^1$

素因数の和:1278

約数の個数: 48

約数和(自身を含む): 27180046080

約数和(自身を除く): 6667493755

約数列:

[1, 5, 17, 25, 85, 241, 271, 425, 739, 1205, 1355, 3695, 4097, 4607, 6025, 6775, 12563, 18475, 20485, 23035, 62815, 65311, 102425, 115175, 178099, 200269, 314075, 326555, 890495, 1001345, 1110287, 1632775, 3027683, 3404573, 4452475, 5006725, 5551435, 15138415, 17022865, 27757175, 48264829, 75692075, 85114325, 241324145, 820502093, 1206620725, 4102510465, 20512552325]

約数ペア:

[(1, 20512552325), (5, 4102510465), (17, 1206620725), (25, 820502093), (85, 241324145), (241, 85114325), (271, 75692075), (425, 48264829), (739, 27757175), (1205, 17022865), (1355, 15138415), (3695, 5551435), (4097, 5006725), (4607, 4452475), (6025, 3404573), (6775, 3027683), (12563, 1632775), (18475, 1110287), (20485, 1001345), (23035, 890495), (62815, 326555), (65311, 314075), (102425, 200269), (115175, 178099)]