2017440440

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{491}}^1\times {\mathrm{739}}^1$

素因数の和:1380

約数の個数: 64

約数和(自身を含む): 4587408000

約数和(自身を除く): 2569967560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 491, 556, 695, 739, 982, 1112, 1390, 1478, 1964, 2455, 2780, 2956, 3695, 3928, 4910, 5560, 5912, 7390, 9820, 14780, 19640, 29560, 68249, 102721, 136498, 205442, 272996, 341245, 362849, 410884, 513605, 545992, 682490, 725698, 821768, 1027210, 1364980, 1451396, 1814245, 2054420, 2729960, 2902792, 3628490, 4108840, 7256980, 14513960, 50436011, 100872022, 201744044, 252180055, 403488088, 504360110, 1008720220, 2017440440]

約数ペア:

[(1, 2017440440), (2, 1008720220), (4, 504360110), (5, 403488088), (8, 252180055), (10, 201744044), (20, 100872022), (40, 50436011), (139, 14513960), (278, 7256980), (491, 4108840), (556, 3628490), (695, 2902792), (739, 2729960), (982, 2054420), (1112, 1814245), (1390, 1451396), (1478, 1364980), (1964, 1027210), (2455, 821768), (2780, 725698), (2956, 682490), (3695, 545992), (3928, 513605), (4910, 410884), (5560, 362849), (5912, 341245), (7390, 272996), (9820, 205442), (14780, 136498), (19640, 102721), (29560, 68249)]