81750255

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{487}}^1$

素因数の和:564

約数の個数: 48

約数和(自身を含む): 142792704

約数和(自身を除く): 61042449

約数列:

[1, 3, 5, 15, 19, 31, 57, 93, 95, 155, 285, 361, 465, 487, 589, 1083, 1461, 1767, 1805, 2435, 2945, 5415, 7305, 8835, 9253, 11191, 15097, 27759, 33573, 45291, 46265, 55955, 75485, 138795, 167865, 175807, 226455, 286843, 527421, 860529, 879035, 1434215, 2637105, 4302645, 5450017, 16350051, 27250085, 81750255]

約数ペア:

[(1, 81750255), (3, 27250085), (5, 16350051), (15, 5450017), (19, 4302645), (31, 2637105), (57, 1434215), (93, 879035), (95, 860529), (155, 527421), (285, 286843), (361, 226455), (465, 175807), (487, 167865), (589, 138795), (1083, 75485), (1461, 55955), (1767, 46265), (1805, 45291), (2435, 33573), (2945, 27759), (5415, 15097), (7305, 11191), (8835, 9253)]