20199398275

素因数分解:

$5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{271}}^1\times {\mathrm{773}}^1$

素因数の和:1109

約数の個数: 96

約数和(自身を含む): 31326566400

約数和(自身を除く): 11127168125

約数列:

[1, 5, 7, 19, 25, 29, 35, 95, 133, 145, 175, 203, 271, 475, 551, 665, 725, 773, 1015, 1355, 1897, 2755, 3325, 3857, 3865, 5075, 5149, 5411, 6775, 7859, 9485, 13775, 14687, 19285, 19325, 22417, 25745, 27055, 36043, 39295, 47425, 55013, 73435, 96425, 102809, 112085, 128725, 135275, 149321, 156919, 180215, 196475, 209483, 275065, 367175, 425923, 514045, 560425, 746605, 784595, 901075, 1045247, 1047415, 1375325, 1466381, 2129615, 2570225, 2981461, 3733025, 3922975, 3980177, 5226235, 5237075, 6075007, 7331905, 10648075, 14907305, 19900885, 26131175, 27861239, 30375035, 36659525, 42525049, 74536525, 99504425, 115425133, 139306195, 151875175, 212625245, 577125665, 696530975, 807975931, 1063126225, 2885628325, 4039879655, 20199398275]

約数ペア:

[(1, 20199398275), (5, 4039879655), (7, 2885628325), (19, 1063126225), (25, 807975931), (29, 696530975), (35, 577125665), (95, 212625245), (133, 151875175), (145, 139306195), (175, 115425133), (203, 99504425), (271, 74536525), (475, 42525049), (551, 36659525), (665, 30375035), (725, 27861239), (773, 26131175), (1015, 19900885), (1355, 14907305), (1897, 10648075), (2755, 7331905), (3325, 6075007), (3857, 5237075), (3865, 5226235), (5075, 3980177), (5149, 3922975), (5411, 3733025), (6775, 2981461), (7859, 2570225), (9485, 2129615), (13775, 1466381), (14687, 1375325), (19285, 1047415), (19325, 1045247), (22417, 901075), (25745, 784595), (27055, 746605), (36043, 560425), (39295, 514045), (47425, 425923), (55013, 367175), (73435, 275065), (96425, 209483), (102809, 196475), (112085, 180215), (128725, 156919), (135275, 149321)]