28481265

素因数分解:

$3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{359}}^1$

素因数の和:454

約数の個数: 48

約数和(自身を含む): 51891840

約数和(自身を除く): 23410575

約数列:

[1, 3, 5, 9, 15, 41, 43, 45, 123, 129, 205, 215, 359, 369, 387, 615, 645, 1077, 1763, 1795, 1845, 1935, 3231, 5289, 5385, 8815, 14719, 15437, 15867, 16155, 26445, 44157, 46311, 73595, 77185, 79335, 132471, 138933, 220785, 231555, 632917, 662355, 694665, 1898751, 3164585, 5696253, 9493755, 28481265]

約数ペア:

[(1, 28481265), (3, 9493755), (5, 5696253), (9, 3164585), (15, 1898751), (41, 694665), (43, 662355), (45, 632917), (123, 231555), (129, 220785), (205, 138933), (215, 132471), (359, 79335), (369, 77185), (387, 73595), (615, 46311), (645, 44157), (1077, 26445), (1763, 16155), (1795, 15867), (1845, 15437), (1935, 14719), (3231, 8815), (5289, 5385)]