87965480

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{129361}}^1$

素因数の和:129389

約数の個数: 32

約数和(自身を含む): 209566440

約数和(自身を除く): 121600960

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 129361, 258722, 517444, 646805, 1034888, 1293610, 2199137, 2587220, 4398274, 5174440, 8796548, 10995685, 17593096, 21991370, 43982740, 87965480]

約数ペア:

[(1, 87965480), (2, 43982740), (4, 21991370), (5, 17593096), (8, 10995685), (10, 8796548), (17, 5174440), (20, 4398274), (34, 2587220), (40, 2199137), (68, 1293610), (85, 1034888), (136, 646805), (170, 517444), (340, 258722), (680, 129361)]