28808145

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{193}}^1$

素因数の和:342

約数の個数: 48

約数和(自身を含む): 52296192

約数和(自身を除く): 23488047

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 107, 155, 193, 279, 321, 465, 535, 579, 963, 965, 1395, 1605, 1737, 2895, 3317, 4815, 5983, 8685, 9951, 16585, 17949, 20651, 29853, 29915, 49755, 53847, 61953, 89745, 103255, 149265, 185859, 269235, 309765, 640181, 929295, 1920543, 3200905, 5761629, 9602715, 28808145]

約数ペア:

[(1, 28808145), (3, 9602715), (5, 5761629), (9, 3200905), (15, 1920543), (31, 929295), (45, 640181), (93, 309765), (107, 269235), (155, 185859), (193, 149265), (279, 103255), (321, 89745), (465, 61953), (535, 53847), (579, 49755), (963, 29915), (965, 29853), (1395, 20651), (1605, 17949), (1737, 16585), (2895, 9951), (3317, 8685), (4815, 5983)]