20702977225

素因数分解:

$5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{103141}}^1$

素因数の和:103226

約数の個数: 48

約数和(自身を含む): 31104326656

約数和(自身を除く): 10401349431

約数列:

[1, 5, 7, 25, 31, 35, 37, 155, 175, 185, 217, 259, 775, 925, 1085, 1147, 1295, 5425, 5735, 6475, 8029, 28675, 40145, 103141, 200725, 515705, 721987, 2578525, 3197371, 3609935, 3816217, 15986855, 18049675, 19081085, 22381597, 26713519, 79934275, 95405425, 111907985, 118302727, 133567595, 559539925, 591513635, 667837975, 828119089, 2957568175, 4140595445, 20702977225]

約数ペア:

[(1, 20702977225), (5, 4140595445), (7, 2957568175), (25, 828119089), (31, 667837975), (35, 591513635), (37, 559539925), (155, 133567595), (175, 118302727), (185, 111907985), (217, 95405425), (259, 79934275), (775, 26713519), (925, 22381597), (1085, 19081085), (1147, 18049675), (1295, 15986855), (5425, 3816217), (5735, 3609935), (6475, 3197371), (8029, 2578525), (28675, 721987), (40145, 515705), (103141, 200725)]