161994352

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{778819}}^1$

素因数の和:778840

約数の個数: 20

約数和(自身を含む): 338007880

約数和(自身を除く): 176013528

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 778819, 1557638, 3115276, 6230552, 10124647, 12461104, 20249294, 40498588, 80997176, 161994352]

約数ペア:

[(1, 161994352), (2, 80997176), (4, 40498588), (8, 20249294), (13, 12461104), (16, 10124647), (26, 6230552), (52, 3115276), (104, 1557638), (208, 778819)]