51638125

素因数分解:

$5^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1$

素因数の和:104

約数の個数: 80

約数和(自身を含む): 85472640

約数和(自身を除く): 33834515

約数列:

[1, 5, 7, 11, 25, 29, 35, 37, 55, 77, 125, 145, 175, 185, 203, 259, 275, 319, 385, 407, 625, 725, 875, 925, 1015, 1073, 1295, 1375, 1595, 1925, 2035, 2233, 2849, 3625, 4375, 4625, 5075, 5365, 6475, 6875, 7511, 7975, 9625, 10175, 11165, 11803, 14245, 18125, 23125, 25375, 26825, 32375, 37555, 39875, 48125, 50875, 55825, 59015, 71225, 82621, 126875, 134125, 161875, 187775, 199375, 254375, 279125, 295075, 356125, 413105, 670625, 938875, 1395625, 1475375, 1780625, 2065525, 4694375, 7376875, 10327625, 51638125]

約数ペア:

[(1, 51638125), (5, 10327625), (7, 7376875), (11, 4694375), (25, 2065525), (29, 1780625), (35, 1475375), (37, 1395625), (55, 938875), (77, 670625), (125, 413105), (145, 356125), (175, 295075), (185, 279125), (203, 254375), (259, 199375), (275, 187775), (319, 161875), (385, 134125), (407, 126875), (625, 82621), (725, 71225), (875, 59015), (925, 55825), (1015, 50875), (1073, 48125), (1295, 39875), (1375, 37555), (1595, 32375), (1925, 26825), (2035, 25375), (2233, 23125), (2849, 18125), (3625, 14245), (4375, 11803), (4625, 11165), (5075, 10175), (5365, 9625), (6475, 7975), (6875, 7511)]