71281485

素因数分解:

$3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{2087}}^1$

素因数の和:2135

約数の個数: 64

約数和(自身を含む): 144322560

約数和(自身を除く): 73041075

約数列:

[1, 3, 5, 9, 11, 15, 23, 27, 33, 45, 55, 69, 99, 115, 135, 165, 207, 253, 297, 345, 495, 621, 759, 1035, 1265, 1485, 2087, 2277, 3105, 3795, 6261, 6831, 10435, 11385, 18783, 22957, 31305, 34155, 48001, 56349, 68871, 93915, 114785, 144003, 206613, 240005, 281745, 344355, 432009, 528011, 619839, 720015, 1033065, 1296027, 1584033, 2160045, 2640055, 3099195, 4752099, 6480135, 7920165, 14256297, 23760495, 71281485]

約数ペア:

[(1, 71281485), (3, 23760495), (5, 14256297), (9, 7920165), (11, 6480135), (15, 4752099), (23, 3099195), (27, 2640055), (33, 2160045), (45, 1584033), (55, 1296027), (69, 1033065), (99, 720015), (115, 619839), (135, 528011), (165, 432009), (207, 344355), (253, 281745), (297, 240005), (345, 206613), (495, 144003), (621, 114785), (759, 93915), (1035, 68871), (1265, 56349), (1485, 48001), (2087, 34155), (2277, 31305), (3105, 22957), (3795, 18783), (6261, 11385), (6831, 10435)]