81607920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{337}}^1\times {\mathrm{1009}}^1$

素因数の和:1362

約数の個数: 80

約数和(自身を含む): 253986720

約数和(自身を除く): 172378800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 337, 674, 1009, 1011, 1348, 1685, 2018, 2022, 2696, 3027, 3370, 4036, 4044, 5045, 5055, 5392, 6054, 6740, 8072, 8088, 10090, 10110, 12108, 13480, 15135, 16144, 16176, 20180, 20220, 24216, 26960, 30270, 40360, 40440, 48432, 60540, 80720, 80880, 121080, 242160, 340033, 680066, 1020099, 1360132, 1700165, 2040198, 2720264, 3400330, 4080396, 5100495, 5440528, 6800660, 8160792, 10200990, 13601320, 16321584, 20401980, 27202640, 40803960, 81607920]

約数ペア:

[(1, 81607920), (2, 40803960), (3, 27202640), (4, 20401980), (5, 16321584), (6, 13601320), (8, 10200990), (10, 8160792), (12, 6800660), (15, 5440528), (16, 5100495), (20, 4080396), (24, 3400330), (30, 2720264), (40, 2040198), (48, 1700165), (60, 1360132), (80, 1020099), (120, 680066), (240, 340033), (337, 242160), (674, 121080), (1009, 80880), (1011, 80720), (1348, 60540), (1685, 48432), (2018, 40440), (2022, 40360), (2696, 30270), (3027, 26960), (3370, 24216), (4036, 20220), (4044, 20180), (5045, 16176), (5055, 16144), (5392, 15135), (6054, 13480), (6740, 12108), (8072, 10110), (8088, 10090)]