40549990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{16417}}^1$

素因数の和:16456

約数の個数: 32

約数和(自身を含む): 82746720

約数和(自身を除く): 42196730

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 190, 247, 494, 1235, 2470, 16417, 32834, 82085, 164170, 213421, 311923, 426842, 623846, 1067105, 1559615, 2134210, 3119230, 4054999, 8109998, 20274995, 40549990]

約数ペア:

[(1, 40549990), (2, 20274995), (5, 8109998), (10, 4054999), (13, 3119230), (19, 2134210), (26, 1559615), (38, 1067105), (65, 623846), (95, 426842), (130, 311923), (190, 213421), (247, 164170), (494, 82085), (1235, 32834), (2470, 16417)]