28207795

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{1787}}^1$

素因数の和:1851

約数の個数: 32

約数和(自身を含む): 43255296

約数和(自身を除く): 15047501

約数列:

[1, 5, 7, 11, 35, 41, 55, 77, 205, 287, 385, 451, 1435, 1787, 2255, 3157, 8935, 12509, 15785, 19657, 62545, 73267, 98285, 137599, 366335, 512869, 687995, 805937, 2564345, 4029685, 5641559, 28207795]

約数ペア:

[(1, 28207795), (5, 5641559), (7, 4029685), (11, 2564345), (35, 805937), (41, 687995), (55, 512869), (77, 366335), (205, 137599), (287, 98285), (385, 73267), (451, 62545), (1435, 19657), (1787, 15785), (2255, 12509), (3157, 8935)]