20490010

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89087}}^1$

素因数の和:89117

約数の個数: 16

約数和(自身を含む): 38486016

約数和(自身を除く): 17996006

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 89087, 178174, 445435, 890870, 2049001, 4098002, 10245005, 20490010]

約数ペア:

[(1, 20490010), (2, 10245005), (5, 4098002), (10, 2049001), (23, 890870), (46, 445435), (115, 178174), (230, 89087)]