2665817680

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{499}}^1\times {\mathrm{1553}}^1$

素因数の和:2108

約数の個数: 80

約数和(自身を含む): 6358968000

約数和(自身を除く): 3693150320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 499, 688, 860, 998, 1553, 1720, 1996, 2495, 3106, 3440, 3992, 4990, 6212, 7765, 7984, 9980, 12424, 15530, 19960, 21457, 24848, 31060, 39920, 42914, 62120, 66779, 85828, 107285, 124240, 133558, 171656, 214570, 267116, 333895, 343312, 429140, 534232, 667790, 774947, 858280, 1068464, 1335580, 1549894, 1716560, 2671160, 3099788, 3874735, 5342320, 6199576, 7749470, 12399152, 15498940, 30997880, 33322721, 61995760, 66645442, 133290884, 166613605, 266581768, 333227210, 533163536, 666454420, 1332908840, 2665817680]

約数ペア:

[(1, 2665817680), (2, 1332908840), (4, 666454420), (5, 533163536), (8, 333227210), (10, 266581768), (16, 166613605), (20, 133290884), (40, 66645442), (43, 61995760), (80, 33322721), (86, 30997880), (172, 15498940), (215, 12399152), (344, 7749470), (430, 6199576), (499, 5342320), (688, 3874735), (860, 3099788), (998, 2671160), (1553, 1716560), (1720, 1549894), (1996, 1335580), (2495, 1068464), (3106, 858280), (3440, 774947), (3992, 667790), (4990, 534232), (6212, 429140), (7765, 343312), (7984, 333895), (9980, 267116), (12424, 214570), (15530, 171656), (19960, 133558), (21457, 124240), (24848, 107285), (31060, 85828), (39920, 66779), (42914, 62120)]