20655250

素因数分解:

$2^1\times 5^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1$

素因数の和:101

約数の個数: 128

約数和(自身を含む): 51217920

約数和(自身を除く): 30562670

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 25, 29, 35, 37, 50, 55, 58, 70, 74, 77, 110, 125, 145, 154, 175, 185, 203, 250, 259, 275, 290, 319, 350, 370, 385, 406, 407, 518, 550, 638, 725, 770, 814, 875, 925, 1015, 1073, 1295, 1375, 1450, 1595, 1750, 1850, 1925, 2030, 2035, 2146, 2233, 2590, 2750, 2849, 3190, 3625, 3850, 4070, 4466, 4625, 5075, 5365, 5698, 6475, 7250, 7511, 7975, 9250, 9625, 10150, 10175, 10730, 11165, 11803, 12950, 14245, 15022, 15950, 19250, 20350, 22330, 23606, 25375, 26825, 28490, 32375, 37555, 39875, 50750, 50875, 53650, 55825, 59015, 64750, 71225, 75110, 79750, 82621, 101750, 111650, 118030, 134125, 142450, 165242, 187775, 268250, 279125, 295075, 356125, 375550, 413105, 558250, 590150, 712250, 826210, 938875, 1475375, 1877750, 2065525, 2950750, 4131050, 10327625, 20655250]

約数ペア:

[(1, 20655250), (2, 10327625), (5, 4131050), (7, 2950750), (10, 2065525), (11, 1877750), (14, 1475375), (22, 938875), (25, 826210), (29, 712250), (35, 590150), (37, 558250), (50, 413105), (55, 375550), (58, 356125), (70, 295075), (74, 279125), (77, 268250), (110, 187775), (125, 165242), (145, 142450), (154, 134125), (175, 118030), (185, 111650), (203, 101750), (250, 82621), (259, 79750), (275, 75110), (290, 71225), (319, 64750), (350, 59015), (370, 55825), (385, 53650), (406, 50875), (407, 50750), (518, 39875), (550, 37555), (638, 32375), (725, 28490), (770, 26825), (814, 25375), (875, 23606), (925, 22330), (1015, 20350), (1073, 19250), (1295, 15950), (1375, 15022), (1450, 14245), (1595, 12950), (1750, 11803), (1850, 11165), (1925, 10730), (2030, 10175), (2035, 10150), (2146, 9625), (2233, 9250), (2590, 7975), (2750, 7511), (2849, 7250), (3190, 6475), (3625, 5698), (3850, 5365), (4070, 5075), (4466, 4625)]