20208656

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{97157}}^1$

素因数の和:97178

約数の個数: 20

約数和(自身を含む): 42166572

約数和(自身を除く): 21957916

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 97157, 194314, 388628, 777256, 1263041, 1554512, 2526082, 5052164, 10104328, 20208656]

約数ペア:

[(1, 20208656), (2, 10104328), (4, 5052164), (8, 2526082), (13, 1554512), (16, 1263041), (26, 777256), (52, 388628), (104, 194314), (208, 97157)]