28309995

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{347}}^1$

素因数の和:409

約数の個数: 72

約数和(自身を含む): 58793904

約数和(自身を除く): 30483909

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 37, 45, 49, 63, 105, 111, 147, 185, 245, 259, 315, 333, 347, 441, 555, 735, 777, 1041, 1295, 1665, 1735, 1813, 2205, 2331, 2429, 3123, 3885, 5205, 5439, 7287, 9065, 11655, 12145, 12839, 15615, 16317, 17003, 21861, 27195, 36435, 38517, 51009, 64195, 81585, 85015, 89873, 109305, 115551, 153027, 192585, 255045, 269619, 449365, 577755, 629111, 765135, 808857, 1348095, 1887333, 3145555, 4044285, 5661999, 9436665, 28309995]

約数ペア:

[(1, 28309995), (3, 9436665), (5, 5661999), (7, 4044285), (9, 3145555), (15, 1887333), (21, 1348095), (35, 808857), (37, 765135), (45, 629111), (49, 577755), (63, 449365), (105, 269619), (111, 255045), (147, 192585), (185, 153027), (245, 115551), (259, 109305), (315, 89873), (333, 85015), (347, 81585), (441, 64195), (555, 51009), (735, 38517), (777, 36435), (1041, 27195), (1295, 21861), (1665, 17003), (1735, 16317), (1813, 15615), (2205, 12839), (2331, 12145), (2429, 11655), (3123, 9065), (3885, 7287), (5205, 5439)]