20278856

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{194989}}^1$

素因数の和:195008

約数の個数: 16

約数和(自身を含む): 40947900

約数和(自身を除く): 20669044

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 194989, 389978, 779956, 1559912, 2534857, 5069714, 10139428, 20278856]

約数ペア:

[(1, 20278856), (2, 10139428), (4, 5069714), (8, 2534857), (13, 1559912), (26, 779956), (52, 389978), (104, 194989)]