66609712

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{320239}}^1$

素因数の和:320260

約数の個数: 20

約数和(自身を含む): 138984160

約数和(自身を除く): 72374448

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 320239, 640478, 1280956, 2561912, 4163107, 5123824, 8326214, 16652428, 33304856, 66609712]

約数ペア:

[(1, 66609712), (2, 33304856), (4, 16652428), (8, 8326214), (13, 5123824), (16, 4163107), (26, 2561912), (52, 1280956), (104, 640478), (208, 320239)]