81275565

素因数分解:

$3^1\times 5^1\times 7^3\times {\mathrm{15797}}^1$

素因数の和:15826

約数の個数: 32

約数和(自身を含む): 151660800

約数和(自身を除く): 70385235

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 343, 735, 1029, 1715, 5145, 15797, 47391, 78985, 110579, 236955, 331737, 552895, 774053, 1658685, 2322159, 3870265, 5418371, 11610795, 16255113, 27091855, 81275565]

約数ペア:

[(1, 81275565), (3, 27091855), (5, 16255113), (7, 11610795), (15, 5418371), (21, 3870265), (35, 2322159), (49, 1658685), (105, 774053), (147, 552895), (245, 331737), (343, 236955), (735, 110579), (1029, 78985), (1715, 47391), (5145, 15797)]